[Extrapulmonary manifestation of sarcoidosis in the breast].

Sarcoidosis is, pathologico-anatomically speaking, a granulomatous disease that can involve almost any organ. However, a histologically confirmed involvement of the mammary gland after exclusion by differential diagnosis of granulomatous mastitis and mycobacterial or fungal sonographic and mammographic image would rather suggest a fibroadenoma of the breast. However, a malignant process such as for instance a mucinous carcinoma of the breast should always be excluded by differential diagnosis, especially if there are concomitant general symptoms of disease.