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Unusual presentation of intraparenchymal renal artery aneurysm mimicking cystic renal cell carcinoma: A case report
Author(s) -
Osako Yoichi,
Tatarano Shuichi,
Nishiyama Kenryu,
Yamada Yasutoshi,
Yamagata Takaaki,
Uchida Yosuke,
Nakagawa Masayuki
Publication year - 2011
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.1442-2042.2011.02775.x
Subject(s) - medicine , nephrectomy , radiology , renal cell carcinoma , renal artery , aneurysm , thrombus , cyst , pathological , kidney , presentation (obstetrics) , surgery , pathology
We describe a case of intraparenchymal renal artery aneurysm in a 58‐year‐old normotensive man with a history of distal ureterectomy. Imaging studies of the pre‐existing right renal mass had been interpreted as being consistent with a simple renal cyst. Three years after ureterectomy, a small parietal nodule with contrast enhancement developed within the cyst. Partial nephrectomy was carried out based on a preoperative diagnosis of cystic kidney cancer. Surprisingly, pathological diagnosis was an aneurysm with a revascularized thrombus. Even though the present case represents an extremely rare clinical manifestation of intraparenchymal renal artery aneurysm, clinicians should be aware that imaging studies cannot distinguish all instances of renal vascular disease.