Fig. 2From: Differential diagnosis of breast mucinous carcinoma with an oval shape from fibroadenoma based on ultrasonographic featuresFibroadenoma in a 34-year-old woman. An oval mass with a hypoechoic pattern, not circumscribed margins and no posterior features was found in the right breast. The mass was categorized as 4 A mainly because of the not circumscribed margin. Pathological diagnosis: fibroadenomaBack to article page