Primary High Grade Muscle Invasive Bladder Urothelial Carcinoma with Metastasis to the Penis Sparing the Urethra- A Case Presentation and Review of Literature

Background: Metastatic transitional cell carcinoma in the penis is extremely rare. Symptoms like penile pain, swelling, or priapism should raise the suspicion, when they happen in a known case of invasive bladder cancer. Case presentation: We report an unusual case of penile pain and swelling in a 69-year-old man, known to have invasive bladder cancer that was initially treated with radiotherapy. Although both penile ultrasound and MRI suspected hematoma or scarring rather than malignancy, the penile biopsy confirmed metastatic transitional cell carcinoma. Conclusion: Metastatic urothelial carcinoma in the penis is a rare presentation with poor prognosis, where treatment options are very limited and mainly palliative.