title: Urethral carcinoma after radiation therapy for mixed prostatic carcinoma.
abstract: The first case of transitional cell carcinoma of the bulbous urethra occurring 8 months after radiation therapy for mixed ductal and adenocarcinoma of the prostate is presented. The significance of the sequential appearance of these tumors is discussed. Periodic endoscopic evaluation appears warranted following the diagnosis of transitional cell carcinoma of the prostate to ensure early recognition of secondary  urethral lesions or bladder extension of the tumor.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D000368:Aged; D001707:Biopsy, Needle; D002295:Carcinoma, Transitional Cell / Q000150:complications* / Q000473:pathology; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D009378:Neoplasms, Multiple Primary; D011471:Prostatic Neoplasms / Q000150:complications* / Q000473:pathology / Q000532:radiotherapy; D014523:Urethral Neoplasms / Q000150:complications* / Q000473:pathology