Metaplastic breast cancer (MBC) comprises less than 1% of all breast cancers, and it is defined by a mixture of adenocarcinoma plus mesenchymal and epithelial components. It is more common in older and black female patients. It has a larger size and faster growth, and it is frequently node-negative and triple-negative when compared with invasive ductal carcinoma. The authors report the case of a 72-year-old female patient, presenting with a breast lump, whose biopsy revealed a probable MBC with chondroid differentiation. She underwent a breast conservative surgery (BCS) and axillary sentinel lymph node dissection (SLND). The pathological report was concordant with the biopsy, and the patient was proposed to chemoradiotherapy. Despite its rarity and more severe features at diagnosis, BCS plus SLND plus radiotherapy should be offered to these patients, associated with chemotherapy. Chondroid differentiation is the rarest of all histological subtypes.

Cellular angiofibroma (CA)is a rare benign mesenchymal tumor. In women, it occurs mainly in the vulvovaginal region, with vulvar location in 70% of the cases. Its clinical presentation is nonspecific and similar to several other vulvar tumors of different cellular origins. Thus, its histological and immunohistochemical features allow distinction from other tumors. Cellular angiofibromas have good prognosis, despite some risk of relapse. The authors present the case of a 49-year-old woman with a bulky right vulvar lesion, for which the preoperative diagnosis was a Bartholin cyst, but the histological and immunohistochemical evaluation yielded a CA.