Gallbladder Ascariasis After Acute Pancreatitis Due to Parasitic Migration

A 30-year-old woman presented with acute pancreatitis, initially showing gallstones and peripancreatic fluid on ultrasound. A follow-up ultrasound, after symptom persistence, revealed mobile, tubular hyperechoic structures in the gallbladder; biliary ascariasis was diagnosed. The appearance of Ascaris lumbricoides as a thick, echogenic structure without acoustic shadowing confirmed the parasitic migration. Treatment with albendazole resolved the symptoms within 72 hours. A subsequent ultrasound verified the absence of ascariasis, confirming the diagnosis and treatment success.