Study index: 96-34 Vendor ATL Modality US Examination Liver ultrasound History Patient presented following blunt trauma to abdomen with a rupture of echinococcal cyst. Repeat ultrasound examination to monitor response to therapy. Findings Hypoechoic spherical masses are present in the liver consistent with the patient's known echinococcal disease. These appear slightly decreased in size compared to the examination of one month ago. No new lesions are detected. There is no ascites. Echinococcal cyst again visualized with slight reduction in size since the prior examination.