Genitourinary Rhabdomyosarcoma

  • Etiology: malignant neoplasm of striated muscle
  • Imaging: arise from bladder or prostate or vagina
  • Complications: metastasis to lung
  • Clinical: 50% head and neck / 30% genitourinary / 20% musculoskeletal, embryonal cell type seen in infants is most common, alveolar cell type seen in older children and affects musculoskeletal system and is more aggressive, orbital has best prognosis

Cases of Genitourinary Rhabdomyosarcoma

Cases of Bladder Rhabdomyosarcoma

IVP and CT of rhabdomyosarcoma of the bladder
AP image from the excretory phase of a vintage intravenous pyelogram (above) shows bilaterally normal appearing renal collecting systems and ureters. There is a multilobulated circumferential filling defect in the base of the badder. Axial CT with contrast of the abdomen shows the mass to almost complete fill the base of the bladder.

Cases of Prostatic Rhabdomyosarcoma

CT of prostatic rhabdomyosarcoma
Axial CT with contrast of the abdomen shows a soft tissue mass arising from between the bladder and rectum that is invading into the posterior wall of the bladder, resulting in filling defects within the bladder.