Cases
Man in his 60s with a bladder mass   

Findings and diagnosis

Findings

Differential diagnosis

  • Alveolar soft part sarcoma
  • Embryonal rhabdomyosarcoma
  • Rhabdomyosarcoma of the bladder (RMS), alveolar pattern
  • Merkel cell carcinoma
  • Metastatic neuroendocrine carcinoma

Diagnosis: Rhabdomyosarcoma of the bladder (RMS), alveolar pattern