Detection of Isolated Diffuse Cutaneous and Subcutaneous Metastasis of Breast Cancer on FDG-PET/CT

Abstract

Cutaneous metastasis from internal malignancies are rare with a reported incidence between 0.7% and 10%. The most common tumor that metastasize to the skin is breast cancer. We present a 53-year-old woman with a history of bilateral breast cancer who underwent FDG-PET/CT for re-staging, which demonstrated isolated cutaneous and subcutaneous chest wall metastases. Histopathologic verification confirmed invasive ductal carcinoma invasion of the dermis and the lymphatic vessels.