Priapism Secondary to Metastatic Malignancy

Malignant priapism is a term originally coined by Peacock 7 in 1938 to describe a condition of painful induration and erection of the penis due to infiltration by secondary neoplasm. In the case which he presented the patient developed penile metastases one and one-half years following treatment of a bladder carcinoma by transurethral fulguration. The penile lesion was found to be carcinoma metastatic from the bladder; and, when the patient died shortly thereafter, diffuse metastases were found. This subject was reviewed in 1956 by Paquin and Roland, 6 who summarized reports of 55 such cases from the literature and added 9 cases, making a total of 64 case records. Study of these patients indicated that the origin of the neoplasm which metastasized to the penis was the bladder in one-third of the cases. Neoplasms of the rectum and prostate accounted for 39% of the cases reported. The methods of spread