Cutaneous Scrotal Metastasis Secondary to Primary Prostate Adenocarcinoma Responding to Immunotherapy

Abstract

This case demonstrates the aggressive progression of prostate adenocarcinoma, failing 3 treatment regimens. Although the patient initially responded to treatments, he developed cutaneous metastasis. Genomic tumor analysis of scrotal tissue confirmed targetable molecular mutations. Treatment with systemic immunotherapy was initiated with complete resolution of disease. This case reveals the rare metastasis of prostate adenocarcinoma to the scrotum with advanced refractory cancer and the successful response to immunotherapy. It illustrates the importance of tumor genomic testing in advanced refractory prostate cancer.