“Coildocholithiasis”—Common Bile Duct Obstruction Secondary to Migration of Right Hepatic Artery Pseudoaneurysm Coils

Intrabiliary Migrated Clips and Coils as a Nidus for Biliary Stone Formation: A Rare Complication following Laparoscopic Cholecystectomy

“…Intrabiliary migration of foreign bodies is a rare complication and the literature only consists of case reports. Besides surgical clips, nonabsorbable sutures, coils for arterial embolization, ingested fish bones and toothpicks, and remnants of draining tubes or stents have been reported to migrate into the biliary tract [6, 7, 8]. A literature review of 69 cases of intrabiliary migrated surgical clips showed ERCP to be the appropriate treatment, with a success rate of 85% [9].…”

Coil Migration into Common Bile Duct after Postcholecystectomy Hepatic Artery Pseudo‑aneurysm Coiling

“…Kao et al reported spontaneous extrusion of hepatic artery pseudoaneurysm coils into the bile duct. [8] A similar case of "coilodocholithiasis" was reported by Bent et al [9] A case of splenic artery pseudoaneurysm that underwent coiling and presented 3 months later with pain abdomen and on endoscopy, there was a large gastric ulcer with coil extrusion into the gastric lumen. Inflammation and infection at the coil site have been proposed as an inciting event in the process of coil extrusion.…”

Biliary obstruction necessitating choledochojejunostomy as a complication of endovascular coil erosion

“…Although our case highlights the potential for a significant additional intervention after coil embolization, minimally invasive endovascular treatment is often still the preferred method for managing VAAs [3] . Although complications from embolization can typically occur in the short term, such as intraprocedurally with vessel dissection or nontarget embolization resulting in ischemia [2] , [5] , our case highlights the idea that coil migration and erosion should at least be considered in patients with a history of visceral artery coil embolization presenting with jaundice, recurrent hemorrhage, or nonspecific abdominal pain, nausea or vomiting months or even years after their endovascular treatment [7] , [13] , [14] .…”

“…Although coil migration resulting in biliary obstruction has been previously reported, most of these cases involved coils placed in the right hepatic artery in the setting of pseudoaneurysm formation related to complications from cholecystectomy, liver transplantation [11] , [12] , [13] , or percutaneous placement of an internal or external biliary drain [14] . In these cases, the migrated coils causing biliary obstruction were removed percutaneously from the CBD [14] , surgically with a biliary-enteric revision [12] , and endoscopically with a papillary balloon dilation and extraction of coils [13] .…”