An unusual presentation of prostate cancer posing a diagnostic dilemma: A case report.

Sarcomatoid carcinomas are a rare type of prostate cancer and are associated with a poor prognosis. We present the case of an 80-year-old gentleman who presented with rectal bleeding and his CT scan revealed an incidental pelvic cystic mass. He initially underwent attempted ultrasound-guided drainage and transurethral resection for this. Definitive management was a radical surgery. Histological findings confirmed that the morphological features favoured a sarcomatoid prostate cancer rather than a primary sarcoma, as was thought. Unusual presentations of pathologies may be encountered during our practice and present a challenge. A methodological approach is required to ensure positive outcomes.