MR mammography of a primary squamous cell carcinoma of the breast: a case report

A case of a primary squamous cell carcinoma of the breast in a patient with synchronous contralateral invasive ductal adenocarcinoma is reported. To our knowledge, no dynamic MR mammography of this pathology is described in the literature. On MR, it presented as a mainly non-enhancing, partially cystic mass with an enhancing irregular peripheral rim. In the differential diagnosis of a mass with unsharp margins and an irregular border of the cystic or the non-enhancing area on MR mammography, a primary squamous cell carcinoma must be included.