Rhabdomyosarcoma mimicking Wilms' tumor

Abstract

A case of a 6 year old child, with a pleomorphic rhabdomyosarcoma involving simultaneously the leg muscles and the kidney is reported. The renal tumor distorted the pyelocalycial system and Wilms' tumor was the clinical diagnosis. The authors discuss on the possible primary site of the tumor.

Simultaneous occurrence of Wilms tumor and rhabdomyosarcoma in two patients

“…There are several reports of renal tumors composed partially or entirely of rhabdomyosarcomatous elements. Vawter reported the case of a patient with anaplastic WT with rhabdomyosarcomatous differentiation [5], and there are occasional reports of RMS of the kidney [6][7][8]. Neither of our patients had such elements in their renal tumors.…”