Oncocyte

Part of speech: noun

Definitions

1. A type of epithelial cell characterized by abundant, granular, eosinophilic cytoplasm due to numerous mitochondria; commonly found in salivary glands and linked to certain benign and malignant tumors; noted for distinctive cellular morphology under microscopy
2. Cells distinguished by a dense, acid-loving cytoplasm packed with mitochondria leading to a granular appearance; primarily located in glandular tissue such as salivary glands and implicated in specific oncocytic lesions and tumors; recognized by their unique histological features
3. Specialized glandular cells showing a granular, pink-staining cytoplasm full of mitochondria; frequently observed in salivary and thyroid glands and associated with particular neoplasms and physiological changes; identified by their characteristic structural traits in tissue samples

Etymology: "Oncocyte" is a modern scientific coinage, built from two Greek-derived building blocks: "onco-", from Greek "onkos", meaning "mass" or "bulk" (and in medicine, a tumour), and "-cyte", from Greek "kytos", meaning "hollow vessel" or "cell". Put together, the term names a cell type, not a word that existed in classical Greek. The "-cyte" ending is the standard suffix for cell types in biology, as in "lymphocyte" or "erythrocyte," so the term follows a well-established pattern. The "onco-" element is the same prefix found in "oncology," the study of tumours, which is where the Greek sense of swelling or mass still shows up in modern medicine.

Synonyms: tumor cell