Parotid oncocytoma radiology

Irving Dardick, Catalena Birek, Mark W. 3 5. Search Dr. The imaging is directed to the major salivary glands. 120, Issue. Histology results showed 47 patients with benign and 16 patients with malignant tumors: pleomorphic adeno-ma (n=18) (fig 1), Warthin tumor (n=17) (fig 2), mucoep-idermoid carcinoma (n=5), oncocytoma (n=5), malignant Some less common clinical features include parotid oncocytoma, multiple lipomas and angiolipomas, intestinal polyposis, neural tissue tumors, parathyroid adenomas, and large connective tissue nevi.

This article reviews the multimodality diagnostic imaging features of benign neoplastic and nonneoplastic tumors associated with the major salivary glands. Birt-Hogg-Dubé syndrome (BHD) is a rare autosomal dominant disease characterized by skin fibrofolliculomas, pulmonary cysts, spontaneous pneumothoraces, and renal cancers. During the minimally invasive parotid or parotidectomy (removal of the parotid gland) procedure, Dr. Initial ultrasound investigation confirmed a 3 cm solid mass located within the superficial lobe of the right parotid gland. 20%.

Pleomorphic adenoma is more common in middle-aged females. Several types of parotid tumors, both benign and malignant, can present as lobulated hypoechoic lesions. Paraganglioma with unusual presentation in parotid gland: A diagnostic dilemma in fine needle aspiration Anagh A Vora MD , Chi K Lai MD , Jian Yu Rao MD , Sophia K Apple MD , Neda A Moatamed MD Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA Free Online Library: Parotid gland lymphoepithelial cysts in HIV infection. European Journal of Radiology Exta 2007; 63: 97-100 6. Close clinical and radiological follow-up in this case is of paramount importance.

The major salivary glands consist of the parotid, submandibular, and sublingual glands. There are no clear etiologies for most oncocytomas. A painless salivary mass is the most common sign and is evaluated by fine-needle aspiration biopsy. Long-term results are related to the grade of the cancer. title = "Earring Lesions of the Parotid Tail", abstract = "BACKGROUND AND PURPOSE: Masses in the parotid tail can be a source of consternation to radiologists and clinicians; inaccurate localization may lead to significant iatrogenic complication.

Radiographs can demonstrate sialolithiasis or involvement of the PURPOSE: To evaluate the diagnostic value of gadolinium-enhanced dynamic magnetic resonance (MR) imaging of salivary gland tumors and correlate the MR imaging and histopathologic findings. There are two ways to explain the mechanism of increasing the uptake of technetium-99m pertechnetate by oncocytoma. Subsequently, a biopsy confirmed the presence of an oncocytoma. Obstructive Sialadenitis Sialolithiasis (salivary stones) see also: Salivary Stones and Lab Preparation Missouri Sialendoscopy Course April 16 2015 Both benign (non-cancerous) and cancerous salivary gland tumors may develop anywhere in the salivary glands, but the majority of them are parotid tumors. Read period.

Cystic lesions: Parotid gland cysts with large cysts on the right side and smaller cysts on the left side. Tissue effects of salivary gland fine-needle aspiration. False-positive results were found in many of the Warthin's tumors (mean SUV, 7. Christine Glastonbury, MBBS, is the Radiology Vice Chair for Academic Affairs, the Interim Chief of Neuroradiology and a Professor of Clinical Radiology, Otolaryngology Head and Neck Surgery, and Radiation Oncology and Vice Chair for Academic Affairs of Radiology at the University of California, San Francisco. Keywords: oncocytoma, parotid gland, borderline features, malignant potential Renal oncocytoma is an uncommon benign renal neoplasm of unknown etiology.

1 Pleomorphic Adenoma - also known as Mixed Tumor - most common tumor of the major and minor salivary glands - parotid gland 85% submandibular gland 8% intraoral minor salivary gland 7% - constitute about 50% of all intraoral minor salivary gland tumors Lindor NM, Kasperbauer J, Lewis JE, Pittelkow M. Parotid Gland Facial Nerve Salivary Gland Radiology Ultrasound Acoustic Core May show a lobulated distinct border +/- posterior acoustic enhancement. Oncocytoma is a rare, benign salivary neoplasm composed of mitochondria‐rich cells called oncocytes. AB Fig. The parotid gland is the salivary gland most commonly affected by inflammation.

pptx), PDF File (. This report presents the pathologic and imaging findings of an oncocytoma arising in the deep lobe of the left parotid gland in a 66-year-old man. Find answers to health issues you can trust from Healthgrades. INTRODUCTION ANATOMY AND PHYSIOLOGY IMAGING METHODS • BENIGN • MALIGNANT NEOPLASMS 2. Progressive bilateral enlargement and pain affecting the parotid salivary glands: an unusual histologic finding.

Bilateral, multicentric renal oncocytomas are rare and diffuse renal oncocytomas are even rarer. This means that Oncocytoma, renal, or a subtype of Oncocytoma, renal, affects less than 200,000 people in the US population. high density of the parotid gland and weak enhancement of the lesion. People over 40 years old and men are more likely to develop kidney tumors, which are diagnosed at a median age of 48. Diagnosis, clinical features and management of the tumour are discussed in the light of international literature.

Zippel was the first to report a case of renal oncocytoma in 1942. Cancer 1962; 15: 1019-27 7. Pleomorphic adenoma (benign mixed tumor) 1. Plain-film evaluation of the parotid gland is of limited clinical value. of the parotid gland.

Gray, L. For malignant tumors, treatment is with excision and radiation. ppt / . The purpose of this study was to correlate MR imaging and histopathology of parotid gland MR imaging of multinodular bilateral oncocytoma of the parotid gland Article in European Journal of Radiology Extra 63(3):97-100 · September 2007 with 42 Reads DOI: 10. Pathology indicated mucoepidermoid carcinoma.

The value of angionephrography in the diagnosis of the tumour and in the preoperative planning of surgical therapy is emphasized. 664. This is the first report of radioisotope scanning in parotid oncocytoma. Note the signal flow related to the facial artery (arrow). 1-2 Multiple synchronous tumors of the parotid gland are rare, accounting for less than 1% of parotid neoplasms.

Differential diagnosis includes oncocytoma and pleomorphic adenoma. MR imaging of multinodular bilateral oncocytoma of the parotid gland. The tumor is slow growing, painless, and usually appears in the tail of the parotid gland near the angle of the mandible. Oncocytoma of the salivary glands on CT imaging is characterized by solitary or multiple solid masses with sharp, well-delineated margins showing homogeneous enhancement. Malignant Tumor like Mucoepidermoid Carcinoma 3.

The most common imaging modalities that identified PIs initially were MRI and CT. Parotid glands, the largest salivary glands, are found in the cheeks, coming down to overlap the jawline and the area just below the earlobes. This tumor showed increased concentration of sodium pertechnetate Tc 99m. *BENIGN SALIVARY NEOPLASMS. Oncocytoma was diagnosed on the basis of histological, magnetic resonance imaging, and scintigraphic findings.

Oncocytoma was diagnosed on the basis of histological, magnetic resonance imaging (MRI), scintigraphic findings and fine needle aspiration cytology (FNAC). 011 A retrospective study by Kadletz et al suggested that a high body mass index (BMI) and metabolic syndrome may increase the risk of Warthin tumor formation. CT finding of the parotid oncocytomas described in the literature is a well-defined parotid mass showing homogeneous enhancement. When your submission(s) receive final approval ask your reviewer(s) to send you an e-mail noting approval of your submission(s) Tumors of the prestyloid parapharyngeal space are uncommon but challenging due to the variety of lesions encountered and the complex anatomy of the involved area. SUMMARY: Parotid gland oncocytoma is an uncommon, benign salivary neoplasm composed of mitochondria-rich oncocytes.

There is accumulation in cystic spaces due to the absence of intralobular duct. MENDENHALL KEY POINTS Computed tomography and magnetic resonance imaging are instrumental in determining the intrinsic versus extrinsic origin of a parotid-region mass. CONCLUSION: This case was unique because in the literature there are few articles about the rare presentation and deep lobe location of this type of parotid oncocytoma. The median tumor volume was of 5. The average age at presentation is 25-years Parotid Gland Cancer Information Including Symptoms, Diagnosis, Treatment, Causes, Videos, Forums, and local community support.

In Thawley SE, Panje WR, Batsakis JG, et al (eds): Comprehensive management of head and neck tumor, vol 2, Philadelphia, 1987, WB Saunders, p 1202. Dental diagnosticians have responsibility for detecting disorders of the salivary glands A familiarity with salivary gland disorders and applicable current imaging techniques is an essential element of the clinician ’ s armamentarium . Oncocytomas are benign epithelial tumors that are also rare. Methods A follow-up was conducted on 19 patients with parotid carcinomas, excluding cancer de parotida tumors or intra-parotid metastases, between and Keywords Non-melanoma skin cancer. They most commonly in the parotid gland (around 80% of cases).

) Oncocytic Hyperplasia of Ductal and Acinar Structure (Fig. 18 Features of this type, along with specific growth cases originally accessioned with these diagnoses were patterns of Warthin’s tumor and oncocytoma, must be eventually rejected, being This guide will help you prepare for your salivary gland surgery at Memorial Sloan Kettering (MSK), and help you understand what to expect during your recovery. Salivary Gland Cancer Is a Type of Head and Neck Cancer Head and Neck Cancer Facts. edu. 1—76-year-old man with parotid oncocytoma.

Salivary gland tumors most commonly occur in the parotid gland, accounting for nearly 85 percent of all salivary gland tumors. Current approaches and challenges, in addition to the potential future directions, for monitoring treatment responses will differ slightly depending on which specific therapeutic modality was used in the initial phase of treatment of the disease and will be looked at separately. The minor salivary glands are scattered along the upper aerodigestive tract, including the lips, mucosa of the oral cavity, pharynx, and hard palate. On T2WI, Warthin’s tumors are often heterogeneous, with variable signal intensity. txt) or view presentation slides online.

Imaging with CT and MRI can be helpful. The purpose of this study was to correlate MR imaging and histopathology of parotid gland oncocytomas and to define the features that may distinguish these neoplasms from other benign and malignant parotid gland tumors. To assess the efficacy of diffusion-weighted (DW) MR imaging for differentiating between Warthin’s tumor and oncocytoma of the parotid gland. ) Lymphoepithelial The submandibular gland, along with the parotid and sublingual glands, comprise the major salivary glands. Warthin’s tumors show significant uptake of Technetium 99m pertechnetate, as does oncocytoma.

3, 4, 6-9 These neoplasms are histologically composed of monotonous sheets of oncocytes, epithelial cells named by Hamperl in 1931 which are characterized by an intensely A hypoenhancing stellate scar within the mass (red arrowhead) suggests diagnosis of basal cell adenoma over pleomorphic adenoma. 04 cm. MRi of parotid oncocytoma 168 J Radiol Sci September 2011 Vol. Usually parotid gland mass, also submandibular gland or minor salivary glands Mean age 60 years 20% associated with radiation therapy or radiation exposure Rarely bilateral, multiple Rarely synchronous with Warthin tumor or carcinoma ex pleomorphic adenoma May occur in trisomy 7 or in BHD syndrome Oncocytoma Epidemiology. SUMMARY: Parotid gland oncocytoma is an uncommon, benign salivary neoplasm composed of mitochondria-rich oncocytes.

2 However, there have been no reports evaluating whether If the lesion is medial to the parotid tail it is more likely cervical jugular chain lymphadenopathy and if it is more laterally located, it is more likely an exo-phytic tumor from the parotid gland (Hamilton et al. The parotid gland masses in this study included pleomorphic adenoma, Warthin’s tumour, retention cyst, haemangiomas, chronic granuloma, lymphoma, fibrolipoma, abscess, basal cell adenoma, oncocytoma, lymphatic Imaging of salivary gland tumours 1. Liu V, Kwan T, Page EH. These neoplasms are thought to represent parenchymal elements of acini or intralobular ducts that have been transformed by unknown etiologies. salivary gland ultrasound parotid submandibular sublingual stensen’s duct facial nerve warthon’s duct accessory salivary tissue intraparotid lymph node conge Majority of the benign lesions are pleomorphic adenoma with Warthin's tumor, monomorphic adenoma, oncocytoma, myoepithelioma, lipoma, and hemangioma accounting for the other small number of benign lesions.

Bell Email: dianabell@mdanderson. pdf), Text File (. Congratulations to Dr Nicholas Bates, 3rd Year Radiology Resident, who won “Best Case” for Neuro at AIRP for his “Parotid Gland Oncocytoma” case. Axial T1-weighted MRI demonstrates a low-signal-intensity mass in the left parotid gland. The Division of Head and Neck Surgical Oncology offers patients comprehensive and collaborative care for a multitude of head and neck cancers.

When synchronous tumors of the parotid gland are encountered, the most common histology is that of multiple Warthin’s tumors. scribed benign parotid oncocytoma with high FDG uptake. Radiographic features CT. Malignant lesions include mucoepidermoid carcinoma, adenoid cystic carcinoma, undifferentiated carcinoma, adenocarcinoma, and squamous carcinoma. A case with bilateral oncocytoma was presented with clinical, radiologic, and pathologic findings and treatment options in this study.

Because of the importance of identifying small calculi in the gland Usually parotid gland mass, also submandibular gland or minor salivary glands Mean age 60 years 20% associated with radiation therapy or radiation exposure Rarely bilateral, multiple Rarely synchronous with Warthin tumor or carcinoma ex pleomorphic adenoma May occur in trisomy 7 or in BHD syndrome Oncocytoma of Salivary Gland is a rare and benign tumor typically arising from the parotid glands (major salivary gland). Interpretation pearls for MR imaging of parotid gland tumor 35 [5] Mukunyadzi P, Bardales RH, Palmer HE, et al. tmc. Roughly 70 percent of salivary gland tumors start here. Occasional oncocytoma patients, however, have a history of prior radiation therapy or prolonged radiation exposure to the head and neck.

Oxyphil adenoma (oncocytoma) Oncocytomas of the salivary glands are very uncommon. Oncocytomas rarely, if ever, occur in the minor salivary glands. (Original Article) by "Ear, Nose and Throat Journal"; Health, general Head and neck tumors Care and treatment Diagnosis Parotid glands Abnormalities Salivary gland tumours or neoplasms are tumours that form in the tissues of salivary glands. This video is unavailable. Imaging studies revealed a dense expansive mass confined to the inside of the left deep parotid lobule and moderate enhancement following contrast media injection.

Review of the recent literature indicates that benign tumors are "hot," while intermediate and malignant tumors are either normal, or "cold" on radioisotope scanning. 15% occur in the submandibular glands, and 5% form in the sublingual and minor glands. Such neoplasms occur in women, after fifth decade (female-to-male ration of 2:1), and the superficial lobe of the parotid is commonly involved. Director, Cytopathology Massachusetts General Hospital Professor of Pathology Harvard Medical School Boston, MA Uses of Ultrasound Outside of Radiology Specialty Use Anesthesiology guide injecting needles when placing local anaesthetic solutions near nerves • Warthin tumor accounts for 5% of parotid tumors -Typically occur in men in sixth and seventh decade of life-10% bilateral • Monomorphic tumors are rare and seen most commonly in the minor salivary glands of the lip • Mucoepidermoid carcinoma is the most common parotid cancer Oncocytomas of the salivary glands are very uncommon. Parotitis is an inflammation of one or both parotid glands, the major salivary glands located on either side of the face, in humans.

Kasai T, Motoori K, Hanazawa T, et al. - Singapore/SG In this report, the CT findings are described and correlated with the histopathologic features of a case of oncocytoma involving the parotid gland that arose in a background of nodular oncocytic hyperplasia. 5% of all head and neck tumors Benign tumor 80% Malignant tumor 20% Ultrasonographic anatomy of head and neck – a pictorial for the ENT the pressure on the radiology department and expedit- oncocytoma, malignant tumors and 1. Jabir Yasin. by "Ear, Nose and Throat Journal"; Health, general Cysts Development and progression Physiological aspects HIV infections Parotid glands Health aspects Christine Glastonbury, MBBS, is the Radiology Vice Chair for Academic Affairs, the Interim Chief of Neuroradiology and a Professor of Clinical Radiology, Otolaryngology Head and Neck Surgery, and Radiation Oncology and Vice Chair for Academic Affairs of Radiology at the University of California, San Francisco.

Free, official coding info for 2019 ICD-10-CM D11. Benign Tumors like Pleomorphic adenoma, Vascular malformation 2. Papillary cystic oncocytoma and Warthin's tumor of the parotid gland - Volume 100 Issue 6 - P. (D) Warthin tumor with +++ perfusion scale and mixed (central and peripheral) perfusion pattern. 2007.

Birt-Hogg-Dube syndrome presenting as multiple oncocytic parotid tumors. K. Only a histopathological examination can confirm it. 06), five pleomorphic adenomas, two cases of inflammation, one basal cell adenoma, and one monomorphic adenoma. Most cases occur in the parotid gland , , , as it did in our patient.

In addition, multiple small minor salivary glands are noted randomly distributed in the upper aerodigestive tract, including paranasal sinuses and parapharyngeal spaces. 36 No. 1016/j. Previous studies have shown that some benign parotid tumors, including Warthin’s tumor and oncocytoma, may show FDG-avid uptake on PET imaging. 9 - includes detailed rules, notes, synonyms, ICD-9-CM conversion, index and annotation crosswalks, DRG grouping and more.

To the best of our knowledge, our patient is the eighth reported case of BND with parotid oncocytoma. Salivary Swelling (Parotid and Submandibular Glands) (downloadable questionnaire for patient information: Salivary Gland Swelling Patient Questionnaire) Differential Diagnosis. It is a type of oncolytic lesion caused by proliferation of the duct system [1]. Watch Queue Queue. The main clinical importance of this lesion is the difficulty in pre-operatively distinguishing it from renal cell carcinomas , as epidemiology, presentation, imaging and even histology can be very similar.

This case is unique due to the few existing references in literature. The parotid is ectodermal while the submandibular and sublingual glands are endodermal in their origins. ’ Since 1976, when the review by Klein and Valensi’ drew attention to this entity, well over 600 cases have been reported. Many other tiny salivary glands are in your lips, inside your cheeks, and throughout your mouth and throat. Oncocytomas are rare parotid gland tumors.

Methods Forty-five histopathologically confirmed parotid gland tumors (41 Warthin’s tumors and 4 oncocytomas) were examined by MR imaging including DW imaging. Wackym, G. The majority of lesions are benign; however, malignant oncocytomas have been reported. 1% of parotid neoplasms Arise from oncocytes Present as slow growing mass Common in superficial lobe Imaging features are similar to pleomorphic adenoma References: Howlett DC. Table 2: Differential Diagnosis of swellings in Parotid Gland region.

The Micro-Parotidectomy Procedure. Warthin's tumor primarily affects older individuals (age 60–70 years). Our study had some limitations. Treatment and prognosis. Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, Vol.

Interesting Case Files. The algorithm for imaging the salivary glands depends on the clinical scenario with which the patient presents to the clinician. Parotid, malignant tumors. Such neoplasms occur more often in women than in men, with a female-to-male ratio of 2:1. Represents 65% of parotid and submandibular and 40% of minor gland tumors When compared to other benign parotid tumors, it has been found to occur in a significantly older age group (mean 60 year vs 48 year) with male gender more prevalent (61% vs 33%) and mostly found in the parotid tail (86% vs 61%) .

Oncocytoma and Warthin's tumor are predominantly noted in parotid gland. We report a patient with incidentally detected marked bilateral nephromegaly due to innumerable oncocytomas. A. Swelling of Parotid Region Unilateral Palpable Mass 1. Parotid gland oncocytoma most often presents as a painless mass.

EUROPEANJOURNALOF RADIOLOGY ELSEVIER European Journal of Radiology 24 (1997) 227--229 W W Z I--Case report Warthin's tumor of the parotid gland with extension into the parapharyngeal space Shodayu Takashima ",*, Shusuke Sone ", Yuichiro Honjho b Arata Horii b, Jun-ichi Yoshida • Oncocytomas and Warthin's tumors were studied ultrastructurally and with immunofluorescence microscopic techniques against cytokeratins, desmin, vimentin, and actin, the latter characterizing myoepithelial cells. IV. The rate of tumor recurrence was high, reaching rates of 20% to 45% in different reports. Benign masses include pleomorphic adenoma, Warthin’s tumor, oncocytoma, hemangioma, lipoma, schwannoma, and neurofibroma. Stensen Department of Radiology, University of California Irvine Medical Center, duct drains the parotid gland and courses superficially to Orange, CA, USA the masseter muscle, exiting above the upper second molar [4, 5].

(A) Axial view of a high signal pleomorphic adenoma in left parotid; (B) Coronal view of a low signal ma-lignant oncocytoma in left parotid; (C) Pleomorphic adenoma with no perfusion. Oncocytoma is a rare tumor of the salivary gland, accounting for less than 1% of all salivary gland neoplasms. Rosenfeld, I. 2% of all parotidectomies performed at our institution. edu Imaging Technique •Linear array transducer •Superficial location –Highest MHz possible •Color/power Doppler –Mass evaluation, inflammatory processes •Bilateral examination •Lower neck for nodes, thyroid primary etc •CT/MR for deep parotid lobe The Major Salivary Glands Oncocytoma, renal is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH).

Hered Cancer Clin Pract 2012; 10:13. Submission of Radiology ICF’s to Yasin K. Warthin’s tumor and oncocytoma usually have positive uptake of technetium-99. Larian will remove all or a portion of the parotid gland through a very small and well-hidden incision near the ear - an approach that results in reduced pain, minimal scarring, and a quicker recovery. Benign and malignant oncocytoma.

The sonographic characteristics of parotid masses between benign and malignant lesions had no significant differences. A case of unilateral renal oncocytoma is reported. Most salivary gland tumors are benign and occur in the parotid glands. The pleomorphic adenoma is the most prevalent histological type and subtotal parotidectomy with facial nerve preservation is the best treatment for these patients. Watch Queue Queue Oncocytoma: small, well defined small, well defined small, well defined, hypointense to normal parotid gland isointense to hyperintense to normal parotid gland same enhancement as normal parotid gland mitochondria-rich oncocytes Most salivary gland tumors are benign and occur in the parotid glands.

Ultrasound guided wire localisation to aid surgical biopsy of impalpable parotid oncocytoma Abstract Ultrasound guided wire localisation (UGWL) is an effective way of helping a surgeon find an impalpable lesion but its use in the head and neck has only recently been described. The salivary glands are classified as major or minor. Keywords: Warthin’s Tumor, Parotid,Papillary cystadenoma lymphomatosum, Adenolymphoma, salivary gland 1. 1 Unilateral syn-chronous tumors of different histologic types are very rare. ” An oncocytoma typically pres- The patient's prior history of cutaneous melanoma of the head and the presence of multiple, bilateral ovoid hypoechoic lesions that are well marginated suggests metastatic infiltration of the parotid lymph nodes.

A, Contrast-enhanced CT scan through parotid glands shows 1-cm briskly enhancing mass (arrow) in superficial lobe of right parotid gland. In fact, as many as 80% of salivary gland tumors begin in the parotid glands. 5% to 1. These relatively rare tumors exist primarily in the parotid gland. They reported that parotid oncocytoma should be considered as a component manifestation of BHD .

Patients are older than 50 years, and the superficial lobe of the parotid gland is the most commonly reported location. Larger study is needed to validate the finding. Cancers of the head and neck are identified by the area in which they begin: the oral cavity, salivary glands, paranasal sinuses and nasal cavity, pharynx, larynx (voicebox), and lymph nodes in the neck. F. However, several case reports have documented benign tumors of the parotid gland with facial nerve paralysis.

To our knowledge, only 20 cases were reported in the literature. The World Health Organization (WHO) classification describes three main types of oncocytic lesions: diffuse oncocytosis, focal nodular/adenomatous oncocytic hyperplasia, and oncocytoma [2]. Read through this guide at least once before your surgery and then use it as a reference in the days leading up to your surgery. MANCUSO, MIKHAIL VAYSBERG, AND WILLIAM M. 2003).

Our team practices out of the UCSF Ron Conway Family Gateway Medical Building, one of the nation’s top ten medical centers. The patient's prior history of cutaneous melanoma of the head and the presence of multiple, bilateral ovoid hypoechoic lesions that are well marginated suggests metastatic infiltration of the parotid lymph nodes. Elaine Rowe, Differentiation and the cytomorphology of salivary gland tumors with specific reference to oncocytic metaplasia, Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 88, 6, (691), (1999). J Am Acad Dermatol 2000; 43:1120. com Primary parapharyngeal tumors Most of the tumors in parapharyngeal space are metastatic disease or direct extension from adjacent spaces 0.

99mTc Pertechnetate Scintigraphy for Warthin Tumors of the Parotid Gland: Comparison of Histopathological and Magnetic Resonance Imaging findings〔11〕 Image Analysis 99mTcO 4 − uptake in the tumor after acid stimulation was visually graded on static images as follows: grade 0 (no visible uptake); grade 1 (the uptake in the tumor was Oncocytoma of minor salivary gland involving the retromolar region: A rare entity Suhasini Gotur Palakshappa 1, Vishal Bansal 2, Vandana Reddy 1, Nagaraju Kamarthi 3 1 Department of Oral Pathology and Microbiology, Subharti Dental College, Meerut, Uttar Pradesh, India 2 Department of Oral and Maxillofacial Surgery, Subharti Dental College, Meerut, Uttar Pradesh, India 3 Department of Oral Though much less likely to occur than pleomorphic adenomaWarthin’s tumor is the second most common benign parotid tumor. Parotid gland tumor with facial nerve paralysis is strongly suggestive of a malignant tumor. (Imaging Clinic). 19,20 This appear in Parotid and Submandibular salivary gland region [1]. Histological results revealed a rare case of an oncocytoma with possible malignant potential.

The reports on MRI imaging of parotid oncocytomas describe these tumors as appearing hypodense on both T1 and T2 sequences. Renal oncocytoma Dr Henry Knipe and Dr Donna D'Souza et al. Examples of neoplastic conditions that are depicted and discussed include pleomorphic adenoma, Warthin tumor, oncocytoma, peripheral nerve sheath tumors, lipoma, and hemangiomas or hemangioendotheliomas. Its differentiation from other cystic-like neoplasms of the pancreas, such as intraductal papillary mucinous neoplasms, is a challenge for pancreatic imaging. Major Salivary Glands Cancer Staging.

Oncocytoma in the parotid gland july 2000 View case 15/24. Ultrasound is also useful in guiding biopsy (both FNAC and core biopsies) but needs to be carried out with care to avoid facial nerve damage ENAL oncocytoma is an uncommon be- nign neoplasm of the kidney of unknown etiology. On T1-weighted MR, the mass contrasts to the hyperintense signal of the normal parotid gland. Hybrid oncocytoma/chromophobe carcinoma, found in 50% of cases, is the most commonly found cancer, followed by chromophobe renal carcinoma, clear cell renal carcinoma, renal oncocytoma, and papillary renal cell carcinoma. The smallest diameter of the parotid lesion was of 6 mm and the largest was of 57 mm.

Lesions developing in the minor salivary glands are uncommon, but they do occur. Context An intraductal oncocytic papillary neoplasm is a rare pancreatic tumor with the potential of developing invasive carcinoma. The investigators found a BMI of 29. Rarely, characteristic lesions have been found in the oral mucosa. Parotid incidentalomas now account for 10.

com Parotid Gland Cancer Information Including Symptoms, Diagnosis, Treatment, Causes, Videos, Forums, and local community support. Because of its rarity (1% of salivary gland tumors) and clinical presentation of the tumor, there is a tendency among the clinicians to misdiagnose it as pleomorphic adenoma, hemangioma, or other forms of oncocytosis. Very few cases of parotid oncocytoma have been reported in literature. Here, we report a case of oncocytoma of the parotid gland with facial nerve paralysis. Finally, 50% of minor gland neoplasms are cancers.

Multifocal masses within the parotid gland are either enlarged lymph nodes or Warthin's tumor. B, PET image shows marked 18F-FDG uptake (arrow) in mass (standard uptake value, 3. org Introduction To Salivary Gland Tumors Tumorlike And Cystic Lesions Tumorlike Lesions (See Table ) Sialolithiasis Sialadenitis Sialadenosis Necrotizing Sialometaplasia (Fig. There is a slight male predilection according to recent studies. To diag- common location of salivary tumors is the parotid gland (70%), followed by the submandibular b Department of Radiology, oncocytoma, and (1) Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA Diana M.

1 Meanwhile, of all parotid gland tumors, only oncocytoma has been reported to appear isointense to the parotid gland, namely vanishing on fat-saturated T2 and T1 postcontrast gadolinium-enhanced MRI. Although oncocytoma usually occurs in the parotid glands, it has much less commonly been reported to occur in minor salivary gland tissues. High resolution ultrasound assessment of the parotid gland. 3 On MRI, lesions appear T1 hypointense but isointense to the native parotid gland on fat-saturated T2 and postcontrast T1 imaging. According to this study, considering the surgical team's experience, a single node in the parotid region is the main manifestation of cancer of the parotid gland.

8). Jabir@uth. Salivary Gland Radiology Presentation - Download as Powerpoint Presentation (. Richard Wiggins is a radiologist in Salt Lake City, Utah and is affiliated with multiple hospitals in the area, including University of Utah Hospital and Veterans Affairs Salt Lake City Health Oncocytomas of the salivary gland which were first termed by Jaffè in 1932, are benign epithelial tumours which occur most commonly in adults in their 6 th -8 th decades, 1-6 although there is no clear gender predilection. Bring this B from Crumley RL, Kelley TF: Rehabilitation of the patient with tumors of the salivary glands.

Parotid oncocytoma in the Birt-Hogg-Dubé syndrome. 2% in parotideal neoplasms. Thus, for parotid lesions with washout TIC pattern and low ADC, Warthin tumour should be differentiated. Warthin’s tumor is usually treated by surgical excision. While they can affect any of salivary glands.

Parotid gland oncocytoma is an uncommon, benign salivary neoplasm composed of mitochondria-rich oncocytes. To our knowledge, no reports have described benign parotid oncocytoma with high FDG uptake. The aim of our study was to characterize the clinical-radiologic-pathologic spectrum of parotid oncocytomas in a series of 10 cases seen in our institution between January 2003 and November 2008. Epomedicine also provides quick access to case discussion on interesting medical cases, videos for developing correct clinical skills and a blog to go beyond notes and research articles to explore the inner-self of Fifteen to 32% of parotid tumors, and about 40% of submandibular lesions are carcinomas. Welcome to the Radiology Assistant Educational site of the Radiological Society of the Netherlands by Robin Smithuis MD.

Hamperl H. 1 in patients with Warthin tumor, compared with 26. Learning is not memorizing but conceptualizing. The prevalence is 0. Hamartomas Diffuse Primary and Secondary Cottom, Hannah O'Neill, Niall Kumar, Anand and Hunter, Keith D.

In addition, 3 cases of oncocytoma (3/7, 42. Recently, there have been a few case reports of BHD with a parotid oncocytoma that appears to have a BHD phenotype. Interestingly, the sole oncocytoma had low FDG uptake. Benign Neoplasms 1. Oncocytomas rarely occur bilaterally.

2 in persons with other types of benign parotid tumors. Barton Branstetter is a radiologist in Pittsburgh, Pennsylvania and is affiliated with multiple hospitals in the area, including James E. PAROTID TUMORS AND TUMORLIKE CONDITIONS ANTHONY A. 05. SALIVARY GLAND RADIOLOGY 1.

Van Zandt Veterans Affairs Medical Center and UPMC Free Online Library: Multiple intraparenchymal parotid calculi: a case report and review of the literature. patient in the left parotid gland with special emphasis on its uniqueness and role of investigations. Dr. INTRODUCTION Warthin’s tumor is a benign neoplasm predominantly found in the parotid gland of the salivary glands. 2015.

You have three pairs of major salivary glands under and behind your jaw — parotid, sublingual and submandibular. Second, most salivary gland malignancies are low-grade, displaying few overt cytologic features . D. Technetium-99m pertechnetate scintigraphy (salivary scintigraphy) is useful to evaluate parotid gland masses. SUMMARY: Oncocytomas of the salivary glands are rare benign epithelial tumors which occur most commonly in the parotid gland.

Most of these tumors are benign (non-cancerous), but the parotid gland is still where most malignant (cancerous) salivary gland tumors start. 9%) and 3 cases of basal cell adenoma (3/3, 100%) showed washout TIC pattern. The tumors may be seen in association with an oncocytoma in many cases. A majority of them are seen in middle-age and older adults. McDonald, Stephen E We report the case of a patient who presented to the ENT service with left facial swelling of 5 months duration.

References: diagnostic radiology, Changi general Hospital, singapore. Ultrasound in the FNA Clinic Martha Bishop Pitman, M. Oncocytic carcinoma of the salivary gland with thymoma: A case report and review of the literature. Authors: Yongcheng Cao; Ming Zhu; Ruiqi Mao; Ruixue Cao This report presents the case of a 57-year-old man with a 6-week history of a slowly enlarging lump in the right parotid gland. Oncocytoma.

Often seen as a well-defined parotid mass showing homogeneous enhancement. Parotid space Other Organs Renal Adrenal gland Gallbladder Spleen Biliary Pancreas Ovary Pancreas Intraventricular masses Suprasellar masses Parotid space Spine Thyroid Scrotum Bone Cardiac Suggestions? In a series of Warthin’s tumor and onco- parotid gland adjacent to Warthin’s tumor or oncocy- cytomas studied by Taxy,18 a significant number of the toma. null-cell adenoma a pituitary adenoma whose cells give negative results on tests for staining and hormone secretion; although classically they were considered to be composed of sparsely granulated or degranulated (nonfunctioning) cells, some contain functioning cells and may be associated with a hyperpituitary state such as acromegaly or Cushing's syndrome. ejrex. First, there are more than 35 salivary gland tumors of epithelial type, 50,51 many of which are rare, placing familiarity with them out of reach for most practitioners.

4 Oncocytoma with intratumoral fat has been described in the kidney; however, in a review of This is the first report of radioisotope scanning in parotid oncocytoma. There was a relative reduction of the wild-type signal from the parotid oncocytoma in this patient, who was heterozygous for the FLCN mutation. Parotid, submandibular, and sublingual glands are the major paired salivary glands in the decreasing order of their size. Epomedicine is a source of concise notes on medical topics with relevant details and mnemonics which makes them easy to conceptualize. This report presents the case of a 57-year-old man with a 6-week history of a slowly enlarging lump in the right parotid gland.

The most common salivary gland tumor (the most common malignantsalivary tumor is mucoepidermoid carcinoma) 2. In the first half of the 20th century, benign parotid tumors were often treated by (intracapsular) enucleation, that is, the tumor was exposed, the capsule was intentionally opened, and the contents were shelled out leaving the capsule in situ. Have your submission(s) reviewed by a faculty member. Parotid masses Radiology Discussion: Typical parotid masses can be separated into benign and malignant neoplasms. Oncocytoma usually presents as a single well-defined lesion, but sometimes a multinodular oncocytoma is seen.

Notably, SGTs of the tongue, floor of the mouth and retromolar areas are most often malignant. Friedmann Oncocytoma of the salivary gland (also salivary gland oncocytoma) is a rare benign tumour of the salivary glands. Lingen and P. Current State of Objective Response Criteria in Prostate Cancer Genitourinary Radiology Oncocytoma: We report a case of a 65-year-old female with a recurrent right parotid pleomorphic adenoma (PA) 24 years after initial Figure 1. Page 2 of 34 Learning objectives The purpose of this pictorial review is to acquaint the reader with the imaging anatomy of the parotid space (PS) and to discuss various congenital, infectious and inflammatory Lesions developing in the minor salivary glands are uncommon, but they do occur.

plasms. The parotid represents the largest of the salivary gland which is situated between the external acoustic meatus between the ramus of the mandible and sternocleidomastoid muscle. Warthin tumors predominantly have unilateral location of the parotid gland although bilaterality and multiplicity This chapter discusses some of the advances made in understanding the etiology and histogenesis of salivary tumors and describes a contemporary approach to the diagnosis and management of patients with benign neoplasms of the salivary glands. British Journal of Radiology (2003) 76, 271-277 Oncocytic Carcinoma of Salivary Gland is a malignancy of the major salivary glands (in about 90% of the cases). Mikesell KV, Kulaylat AN, Donaldson KJ, et al.

6, p. Introduction • Saliva is a clear, alkaline, somewhat viscid secretion from the parotid, submandibular, sublingual and smaller mucous glands of the mouth. Dept of Radiology USC Keck School of Medicine edgrant@usc. Fortunately, these tumors are generally benign, and therefore, they bring expectations from the patient and the physician that excision should lead to low morbidity and very low Salivary gland FNA, in fact, poses a number of challenges to the cytopathologist. There are benign lesions and are often surgically excised.

parotid oncocytoma radiology

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