Benign renal neoplasms in adults: cross-sectional imaging findings.
OBJECTIVE
A broad spectrum of benign renal neoplasms in adults shows characteristic ontogeny, histology, and tumor biology. Benign renal tumors are classified into renal cell tumors, metanephric tumors, mesenchymal tumors, and mixed epithelial and mesenchymal tumors. Select benign tumors show characteristic anatomic distribution and imaging features. However, because of overlapping of findings between benign and malignant renal tumors, histologic evaluation may be required to establish a definitive diagnosis. Accurate preoperative characterization facilitates optimal patient management.


CONCLUSIONS
We attempt to provide a comprehensive, contemporary review of benign renal neoplasms that occur in adults, focusing on cross-sectional imaging characteristics.
Prasad
Srinivasa R
SR
Department of Radiology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr., San Antonio, TX 78229, USA. prasads@uthscsa.edu
Surabhi
Venkateswar R
VR
Menias
Christine O
CO
Raut
Abhijit A
AA
Chintapalli
Kedar N
KN
D000232:Adenofibroma / Q000175:diagnosis; D000236:Adenoma / Q000175:diagnosis; D018249:Adenoma, Oxyphilic / Q000175:diagnosis; D000328:Adult; D000368:Aged; D018207:Angiomyolipoma / Q000175:diagnosis; D002292:Carcinoma, Renal Cell / Q000175:diagnosis; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D005260:Female; D006391:Hemangioma / Q000175:diagnosis; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D007889:Leiomyoma / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography