Fig. 3
From: Breast metastasis from medullary thyroid carcinoma: a report of a case

Ultrasonographical findings of the breast tumors. Multiple low echoic tumors with irregular margins in both breasts were observed. a The breast tumor in the right upper-outer area (1). b The breast tumor in the left lower-inner area (2). c The breast tumor in the left upper-outer area (3). d The breast tumor in the left upper-inner area