Unilateral proptosis as initial presenting sign of prostate cancer in a 45-year-old man

Abstract

We describe the case of 45-year-old man presented with a 3-month history of progressive unilateral proptosis, voiding symptoms, and a 20-pound weight loss. Imaging showed a large brain mass as well as significant extra cranial involvement. He was diagnosed with metastatic prostatic adenocarcinoma and underwent craniotomy, androgen deprivation therapy, and chemotherapy.