[Primary sarcoidosis of the breast: a clinical case].

Sarcoidosis of the breast is rare and only few cases are reported in the literature. A case of sarcoidosis presenting as a breast mass with no other evidence of disease is herein reported. Ultrasound and fine needle aspiration biopsy were performed, but only excisional biopsy with microscopic examination confirmed the diagnosis. Differential diagnosis with other granulomatous lesions is important to select the proper treatment.