Sonographically detected malignant transformation of a simple renal cyst.
The clinical course is reported of a simple renal cyst which developed into a septated renal cyst, and finally to a cystic renal cell carcinoma. A 49-year-old man, who had been diagnosed as having a renal cyst, was found by repeated ultrasonography over 6 years to have solid components developing within the cyst. Radical nephrectomy was performed, and pathological examination confirmed cystic renal cell carcinoma (RCC). This case clearly shows a natural history of malignant transformation from a simple renal cyst, and emphasizes that careful follow-up of renal cysts, especially of complicated renal cysts, is mandatory for successful treatment of RCC.
Sakai
N
N
Department of Urology, Yokohama Minami Kyosai Hospital, Yokohama, Japan. fwnd2088@mb.infoweb.ne.jp
Kanda
F
F
Kondo
K
K
Fukuoka
H
H
Tanaka
T
T
D000328:Adult; D002292:Carcinoma, Renal Cell / Q000473:pathology*; D002471:Cell Transformation, Neoplastic; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000000981:diagnostic imaging* / Q000473:pathology*; D008297:Male; D014463:Ultrasonography