CT of unusual renal masses invading the pelvicaliceal system: potential mimics of upper tract transitional cell carcinoma.
Two patients with renal cell carcinoma and one patient with metastasis to the kidney from colorectal cancer are reported because all three cases manifested at computed tomography (CT) as a renal mass invading the pelvicaliceal system and radiologically simulating transitional cell carcinoma. Recognition that the CT finding of a renal mass with invasion of the pelvicaliceal system is not always indicative of a transitional cell carcinoma broadens the differential diagnosis in this setting and might potentially alter the diagnostic and therapeutic approach.
Department of Radiology and Biomedical Imaging, University of California San Francisco, 505 Parnassus Avenue, San Francisco, CA 94143-0628, USA.
Mary T
MT
Kitazono
Fergus V
FV
Coakley
David M
DM
Naeger
Benjamin M
BM
Yeh
Bonnie N
BN
Joe
Aliya
A
Qayyum
D000368:Aged; D002277:Carcinoma / Q000000981:diagnostic imaging* / Q000556:secondary*; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*; D041742:Upper Gastrointestinal Tract / Q000000981:diagnostic imaging