oncocytoma


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oncocytoma

[‚äŋ·kō·sī′tō·mə]
(medicine)
A benign tumor composed principally of oncocytes; usually occurs in salivary glands.
References in periodicals archive ?
There is also, unfortunately, no way to define these entities (for example, through molecular phenotype), so although individual pathologists may vary in their threshold for oncocytoma versus low-grade oncocytic renal cell carcinoma, there is no way to determine what threshold is actually correct.
Fine-needle aspiration or biopsy has traditionally been of limited value in the evaluation of renal masses due to high incidence of false-negative biopsy findings in patients with renal malignant neoplasms and the difficulty differentiating renal oncocytoma from eosinophilic variants of RCC2.
Renal manifestations in TSC patients include an increased incidence of epithelial cysts and tumors, such as multiple renal angiomyolipomas (AMLs), renal cell carcinoma (RCC), and oncocytoma.
19 Histological findings, n Clear-cell 61 Papillary 7 Chromophobe 5 Oncocytoma 3 Angiomyolipoma 6 Other 3 Operation time 170.
Anatomically-based differential diagnosis for the parotid space * Parenchymal origin: Neoplasms (salivary gland), pleomorphic adenoma, Warthin's tumor, mucoepidermoid carcinoma, adenoid cystic carcinoma, acinous carcinoma, oncocytoma, malignant mixed tumor (Figure 13A).
7) Other histological variants such as papillary, chromophobe, oncocytoma, collecting duct, or unclassified are less common.
Spindle cell oncocytoma of the pituitary and pituicytoma: Two tumors mimicking pituitary adenoma.
The differential diagnosis includes renal cell carcinoma, angiomyolipoma, leiomyosarcoma, and oncocytoma.
There is a risk of development of renal cell carcinoma (~%1) and oncocytoma, albeit low.
The Rosetta Kidney Cancer Test accurately classifies the four most common kidney tumors: clear cell renal cell carcinoma (RCC), papillary RCC, chromophobe RCC and oncocytoma.
ChRCC can be confused with clear cell renal cell carcinoma or oncocytoma and several non-renal tumours with overlapping features including hepatocellular carcinoma, adrenal cortical carcinoma, lung carcinoma, and oncocytic tumours of salivary gland and thyroid.
The other benign tumours are Warthin's tumour, oncocytoma, monomorphic adenoma, haemangioma and lymphangioma.