18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography in the Evaluation of Unusual Cutaneous Manifestation of Carcinoma Urinary Bladder.

Bladder cancer is one of the most common malignancies of the urinary tract. Cutaneous metastasis of bladder carcinoma is extremely rare with a limited number of cases, resulting mainly from iatrogenic seeding. Here, we present scan findings of cutaneous metastasis in a known case of carcinoma urinary bladder. The 18F FDG PET/CT scan revealed FDG avid nodular thickening of the skin and sub-cutaneous tissue with ulcerations involving anterior pelvic wall, walls of the scrotum and the base of the penis. Histopathology confirmed the diagnosis of cutaneous and subcutaneous metastasis.