Fig. 6From: Breast metastasis from medullary thyroid carcinoma: a report of a caseImmunohistochemical findings of the breast tumors. a Calcitonin was positive in the tumor (1). b GCDFP-15 was negative in the tumor (1). c CEA was positive in the tumor (2). d GATA3 was negative in the tumor (1)Back to article page