Gallbladder Ascariasis After Acute Pancreatitis Due to Parasitic Migration

Alegre Villanueva N.M.; Quiros Rodriguez E.J.; Lopez R.C.G.; Mosqueira-Sánchez J.R. · Annals of Internal Medicine Clinical Cases (2025) · DOI: 10.7326/aimcc.2024.1051

Resumen

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.