Imaging Findings of a Pediatric Patient With Focal Intrahepatic Bile Duct Hamartoma: A Case Report

A 15-year-old female adolescent was previously in good health. Ultrasound examination revealed an 84 × 45 mm heterogeneous echo mass in the left inner lobe of the liver, exhibiting clear boundaries and a regular shape. Additionally, multiple small cysts were observed within the heterogeneous echo mass, and occasionally, a strong spot-like echo with a comet tail sign was noted. Imaging results indicated that the left inner lobe of the liver exhibited a lamellar structure with an anomalous signal shadow, suggesting a high probability of bile duct hamartoma.