Malignant epithelial neoplasm of adnexal origin: Hidradenocarcinoma of breast: A rare case report

Abstract

Hidradenocarcinoma is rare sweat gland tumor of skin which may have both apocrine and eccrine variants. We report a case of 27 year old postpartum female patient presented with complain of swelling over right breast since 8 months with pain on and off. The ultrasonography report revealed possibility of fibroadenoma (BIRADS CATEGORY -II). The patient underwent FNAC which was reported as fibroproliferative breast disease with atypia. Then wide local excision of mass was performed, the pathological report stated the tumor as a malignant epithelial neoplasm of adnexal origin – hidradenocarcinoma type and Immunohistochemical analysis revealed negative staining for ER, PR, HER2. This case represent difficulty in diagnosis of tumor. Histopathological features are main key to distinguish it from other entities.