Collagenous spherulosis of the breast. Case report.

ABSTRACT

We report a case of collagenous spherulosis of the breast, a very rare underinvestigated lesion which must not be misinterpreted as a malignant epithelial tumour, such as adenoid cystic or signet-ring cell intraductal carcinoma, on histologic slides. The lesion is typically found in association with benign proliferative breast diseases. Prognosis is excellent.