Mucinous carcinoma in a male breast

Male breast cancer is rare as compared to female counterpart. Pure mucinous carcinoma is an extremely rare histological subtype representing less than 1% of male breast cancers. So far very few cases of pure mucinous carcinoma of male breast have been reported in the literature, most of which were diagnosed after surgical resection. Fine-needle aspiration cytology is a well-established procedure for the evaluation of female breast masses but the diagnosis of malignancy in aspirates from male breast masses is rare. We herein present one case of mucinous carcinoma of breast in a 75-year-old male diagnosed by fine-needle aspiration and confirmed by histopathology. After a follow-up of 12 months the patient is free of any recurrence or metastasis.