Cystoscopy assisted transvesical biopsy of prostatic rhabdomyosarcoma.

The treatment of prostatic rhabdomyosarcoma (RMS) depends on tumour stratification based on site and histology. An increasing range of cytogenetic, molecular, and immunohistochemistry studies are required. This is difficult to achieve using standard cystoscopic biopsies alone. We present a 5-year-old male, diagnosed with a prostatic RMS. He underwent cystoscopy to confirm the diagnosis and at the same time tissue was obtained for histology using laparoscopic graspers via a STEP Port inserted percutaneously into the apex of his bladder. Histology and cytogenetics confirmed an embryonal botryoid RMS for which he received chemotherapy followed by a radical prostatectomy for residual disease.