Sebaceous adenomas of the major salivary glands are uncommon tumors. Although sebaceous differentiation within the major salivary glands is a frequent histopathologic finding (approximately 20% to 42% of parotid glands), sebaceous neoplasms of salivary gland origin are not. A number of publications review the clinical and histologic features of sebaceous neoplasms, however, these reports focus ...

L-methionine uptake by the parotid gland and pancreas has been compared in 27 patients using a non-invasive methodology. L-methionine was labelled with 11C, a positron emitter with a short half life produced in a cyclotron. 11C-L-methionine concentration was measured in the parotid glands and in the pancreas by external detection using a positron emission tomographic system. 11C-L-methionine up...

Warthin’s tumor, also known as papillary cystadenoma lymphomatosum or adenolymphoma, is the second most common benign tumor of the salivary glands. It is commonly seen in lower lobe of the parotid gland and affects mainly male in sixth or seventh decades of life. Studies have shown that there is a close association between Warthin’s tumor and cigarette smoking. Preoperative fine needle aspirati...

ACCs are usually low grade, well‐differentiated neoplasms that constitute 2.5%–4% of parotid gland tumors.[1] The mean age of occurrence is in the fifth decade, but the papillary cystic variant is reported to occur in younger patients compared to the classic type. The most favored site is the parotid (86%), occasionally the submaxillary gland, minor salivary glands.[1] ACC is a neoplastic growt...

We aimed to evaluate the efficacy of combination of propranolol and sclerotherapy in treating parotid hemangiomas. Twenty-six parotid hemangiomas patients were subjected to combined treatment from January 2009 and June 2014. The effects of the therapy modality were evaluated. Nineteen patients were females and 7 were males. The median age of treatment initiation was 4.96 months. Twelve lesions ...

DE-DIFFERENTIATION OF PAROTID ACINAR CELLS IN VITRO Andrew S. Currie July 16, 2010 Background: When rat salivary gland cells are cultured in vitro, they dedifferentiate within 24 h. Hypothesis: Growth factors will prevent de-differentiation of primary cultures of parotid gland cells, and they will induce differentiation of ParC5 cells. DNA methylation drives de-differentiation and the loss of e...

INTRODUCTION The aim of this study was to clarify the effectiveness of various imaging modalities and characteristic imaging features in the screening of IgG4-related dacryoadenitis and sialadenitis (IgG4-DS), and to show the differences in the imaging features between IgG4-DS and Sjögren's syndrome (SS). METHODS Thirty-nine patients with IgG4-DS, 51 with SS and 36 with normal salivary glands...

Salivary gland enlargement, most commonly involving one or both parotid glands, is sometimes seen in association with HIV infection. Enlargement of the parotid gland may be due to diffuse infiltrative lymphocytosis syndrome; lymphoepithelial cysts; or malignant tumors, such as squamous cell carcinoma, Kaposi sarcoma, and Hodgkin and non-Hodgkin lymphomas.1,2 Non–HIV-related causes of parotid en...

Hybrid carcinomas are rare neoplasms which are characterized by two different types of tumors localized in a single topographic region of the lesion. Parotid gland is the most common involvement site of hybrid carcinomas among salivary glands. The aggressiveness of the hybrid tumor depends on its high-grade component. In this article, we present a 71-year-old male case with the left parotid gla...

Computed tomographic (CT) appearances of 18 surgically proven parotid tumors were studied. Digital radiography (GE, ScoutView) was performed to select the desired gantry angulations and then plain CT and CT combined with sialography were performed. Plain CT clearly showed parotid tumors in nine of the patients. CT combined with sialography was more helpful than plain CT for delineating the tumo...