Abdominal Ultrasound Registry Practice Test

Cavernous hemangiomas are a type of benign vascular tumor commonly found in the liver and are one of the most prevalent causes of hyperechoic masses on abdominal ultrasound. These masses are composed of clusters of blood vessels and appear hyperechoic due to their rich vascularity and the presence of blood within them, which reflects ultrasound waves more than the surrounding liver tissue.

In the context of liver imaging, these hemangiomas often present as well-defined and homogeneous lesions that can be identified through their characteristic echogenicity. They typically do not exhibit significant Doppler flow, which helps differentiate them from malignant lesions or other pathologies.

For the other options, cholecystitis primarily relates to gallbladder inflammation and would not typically present as a hyperechoic mass within the liver itself. Intrahepatic cholestasis involves bile duct obstruction and leads to biliary changes rather than discrete masses. Acute pancreatitis is related to inflammation of the pancreas, which is adjacent to the liver but does not contribute to the formation of hyperechoic hepatic masses.

Understanding these distinctions is vital for accurately interpreting liver ultrasound findings and establishing a differential diagnosis.