“…The association of hemihypertrophy with neoplasms is well known, the most common being Wilms tumor [8], with adrenocortical carcinoma [9] and hepatoblastoma [10] also being reported. Other tumors have also been noted rarely, namely neuroblastoma [11,12], testicular carcinoma [13], adrenal adenoma [14], phaeochromocytoma [15], rhabdomyosarcoma [16], leiomyosarcoma [17], and undifferentiated sarcoma of the lung [6]. We encountered an adolescent male with asymmetry of the lower limbs who developed a histologically poorly differentiated sarcoma of the pelvis with features of an embryonal rhabdomyosarcoma.…”