Which of the following liver mets appear hypoechoic on USG?: (A) Ca. Colon, (B) Ca. Breast, (C) Ca. Bladder, (D) Mucinous adenocarcinoma
Answer is B. Hypoechoic lesions can be secondary to lymphoma, melanoma, breast and lung carcinoma, and less commonly, related to gastrointestinal malignant tumors. Ref: Liver Malignancies: Diagnostic and Interventional Radiology By Carlo Baolozzi, Riccardo Lencioni, 1999, Page 180