1. Noun. (medicine) A benign tumour composed of oncocytes ¹
¹ Source: wiktionary.com
Medical Definition of Oncocytoma
1. A glandular tumour composed of large cells with cytoplasm that is granular and eosinophilic due to the presence of abundant mitochondria; occurs uncommonly in the kidney, salivary glands, and endocrine glands.
Synonym: oxyphil adenoma.
Origin: onco-+ G. Kytos, cell, + -oma, tumour
(05 Mar 2000)
