Metastatic eccrine porocarcinoma detected on FDG PET/CT.

Eccrine porocarcinoma is an uncommon neoplasm of the sweat gland duct and poses a significant risk of cutaneous, regional lymph node, or visceral metastases. A 62-year-old woman with a history of eccrine porocarcinoma in the left flank area underwent an F-18 FDG PET/CT scan, which revealed increased FDG uptake in left pelvic (SUV 6.34) and left axillary regions (SUV 4.02). Wide excision of left axillary and left pelvic lymph nodes was performed, and histopathologic findings were consistent with eccrine porocarcinoma. PET/CT detects metastases accurately and is helpful in the management of patients with eccrine porocarcinoma.