Oncocytoma

Oncocytoma
Overview

An oncocytoma is a benign tumor made up of oncocytes (unusually large cells that tend to form into tumors). Oncocytomas can occur in any organ, but they are particularly common in the kidneys and salivary glands.

Oncocytoma of the Salivary Gland. This lesion presented as a lateral anterior neck mass. At surgery, it was found to be a soft 3.0 x 2.1 x 1.8 cm tumor of the submandibular salivary gland.

Oncocytomas
Renal abscesses
more about Adenocarcinoma of the Kidney ...

Oncocytoma is a slow-growing type that rarely, if ever, spreads.
Angiomyolipoma is a benign (noncancerous) tumor that has a unique appearance on the computed tomography (CT or CAT) scan (see Diagnosis) and when viewed with a microscope; ...

Oncocytoma (oxyphil cell adenoma)
Oral cancer
Ossiculoplasty
Otitis externa ...

[Adrenal gland oncocytoma]. Tunis Med. 2011 Mar;89(3):309-10 Authors: Farah-Klibi F… more…
Endocrine Tumors as Part of Inherited… ...

: Malignant oncocytoma of the parotid gland: a case report with an immunohistochemical and ultrastructural study. J Laryngol Otol 107 (1): 69-74, 1993.
Delgado R, Klimstra D, Albores-Saavedra J: Low grade salivary duct carcinoma.

Solid tumours, including adenomas, oncocytomas and adenocarcinomas (see oncocytoma renal and renal cell carcinoma), occur with increased frequency in dialysis patients, developing in up to 7% of cases.

Other benign tumors include monomorphic adenoma, oncocytoma, and papillary cystadenoma lymphomatosum (previously known as cylindroma). These tumors rarely recur and rarely become malignant.

Lymphomas;
Carcinoids;
Oncocytomas;
In children, nephroblastoma (Wilms' tumour) makes up 5-6% of primary renal kidney tumours; and
Renal medullary carcinoma is a rare complication of sickle cell disease.

For example, oncocytoma (a benign tumor) may coexist with kidney cancer in up to 10 percent of cases. Thus, a biopsy may sample the benign component, but miss the malignant component.

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The four hereditary syndromes associated with kidney cancer are: Von Hippel-Lindau syndrome (VHL), hereditary papillary renal cell carcinoma (HPRCC), familial renal oncocytoma (FRO) also known as Birt-Hogg-Dube syndrome, ...

See also: Cancer, Carcinoma, Adenoma, Renal cell carcinoma, Adenocarcinoma