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RENAL ONCOCYTOMA MIMICKING HEMORRHAGIC RENAL CYST
Author(s) -
Sekido Noritoshi,
Kawai Koji,
Takeshima Hitoshi,
Akaza Hideyuki,
Koiso Kenkichi
Publication year - 1995
Publication title -
international journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 67
eISSN - 1442-2042
pISSN - 0919-8172
DOI - 10.1111/j.1442-2042.1995.tb00011.x
Subject(s) - renal oncocytoma , oncocytoma , medicine , cyst , nephrectomy , carcinoembryonic antigen , pathology , kidney , pathological , immunohistochemistry , cancer
A case of oncocytoma, the radiological findings of which resembled a hemorrhagic renal cyst, is reported. Cyst fluid analysis demonstrated extremely high levels of carcinoembryonic antigen (CEA) and carbohydrate antigen 19–9 (CA19–9). Preoperatively the lesion was regarded a malignant cyst, and radical nephrectomy was performed. Pathological diagnosis was renal oncocytoma with cystic degeneration. Although cystic change occasionally has been mentioned in oncocytoma, a high level of CEA and CA 19–9 in the cyst fluid of the cystic oncocytoma have not been reported. We discuss the variant forms of oncocytoma and tumor markers in the cyst fluid.