Embryonal Rhabdomyosarcoma
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
Most of the tumor in this field is composed of primitive appearing cells with large nuclei and scant cytoplasm. A few scattered cells with moderate amount of eosinophilic cytoplasm (rhabdomyoblasts) are also seen. Besides embryonal morphology, rare cases of alveolar and spindle cell pattern have been reported in the bladder.