MALE BREAST CANCER LOCALIZED IN THE NIPPLE WITH PAGET CELLS-REPORT OF A CASE-

Abstract

We report a case of early male breast cancer which localized in the superficial part of the nipple. A 65-year-old man was seen at the hospital because of swelling and erosion of the right breast. Paratripsis cytology of the erosion resulted in Class V and Paget cells were also confirmed. No tumorous lesions were found in the mammary tissues. With a diagnosis of breast cancer localized in the nipple, a mastectomy with axilary lymph nodes dissection was performed. In the resected material, the lesion was localized at the depth of 4mm from the nipple erosion, and was 12×12×4mm in size. No cancer cells were present in mammary tissues. Histologically, it was solid adenotubular carcinoma, and Paget cells having clear cytoplasm were demonstrated in the stratum basale of epidermis. This case on which no tumor was present in the breast and the lesion was localized in the nipple is considered to be classified into Paget cancer. However, infiltration besides ductal invasion was prominent that suggests a difference from ordinary Paget cancers. Further strict observation of the clinical course would be demanded in this case, because infiltration into the lymphatic vessels was also confirmed.