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Adrenocortical oncocytoma exhibits distinct biological features from renal oncocytoma: A rare case report

Year: 2026

Type: article

Abstract: Adrenocortical oncocytoma is a rare adrenal tumor. We report a 59-year-old Japanese woman with a right adrenal mass. The resected specimen showed a well-defined, mahogany-brown tumor measuring 4.3 cm. Microscopically, the tumor scored 0 under both the Lin-Weiss-Bisceglia system and the reticulin algorithm, indicating benignity. Immunohistochemical analysis revealed that tumor cells were positive for mitochondria and negative for BSND and ATP6V1G3. Ultrastructural examination found no uniform mitochondria in the cytoplasm of the tumor cells. The oncocytoma in this case may share more characteristics with an adrenal cortical adenoma than with a renal oncocytoma.

Source: Urology Case Reports

Authors: Mitsuhiro Tachibana, Hiromichi Nakagawa, Hayato Nozawa, Shigeki Fukuzawa

Language: English

Topic: Adrenal and Paraganglionic Tumors

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,160

OpenAlex ID: W7160108684

FWCI:

Cites: 11

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