A 3-year-old child presents with a palpable abdominal mass and a markedly elevated serum alpha-fetoprotein level. Ultrasound reveals a large, heterogeneous solid mass in the right liver lobe with calcifications. What is the most likely diagnosis?

A 58-year-old male presents with RUQ pain, jaundice, and elevated direct bilirubin. Ultrasound shows the following findings. What is the likely diagnosis?

A 26-year-old female presents with recurrent urinary tract infections and dysuria. Ultrasound of the kidneys reveals bright, highly echogenic pyramids bilaterally, while the renal cortex appears normal. What condition is likely present?

Wilson’s disease is an inherited metabolic disorder characterized by abnormal tissue accumulation of which substance in the liver and brain?

What is the most common cause of acute pancreatitis in the United States?

A 45-year-old female presents with a painful groin mass. Ultrasound demonstrates a hernia sac extending inferior to the inguinal ligament and medial to the common femoral vein. What type of hernia is present?

A 64-year-old male with a history of back pain and progressive renal failure undergoes sonography. Images reveal a dense, hypoechoic retroperitoneal mass encasing the distal aorta and compressing both ureters. What is the likely diagnosis?

A 60-year-old male with a history of chronic hepatitis C cirrhosis presents with a new heterogeneous focal liver mass. Contrast-enhanced ultrasound (CEUS) shows intense arterial hyperenhancement followed by rapid portal venous ‘washout’ with peripheral neovascularization. This pattern is diagnostic for:

In the peripheral and visceral arterial systems, calcified atherosclerotic plaque is most commonly encountered at which anatomical location?

Which hyperechoic linear landmark connects the right portal vein branch directly to the neck of the gallbladder on ultrasound?