A 41-year-old woman liked farm chemical-free (pesticid-free) vegetables. She was admitted for severe upper abdominal pain. Biliary ascariasis was suspected upon abdominal ultrasonographic examination. ERC (Endoscopic Retrograde Cholangiography) was performed and a linear filling defect was shown in the bile duct. We diagnosed her case as biliary ascariasis. And then, we removed a worm from the bile duct using stone extracer basket forceps. After this, she was given pyrantel pamoate.Abdominal ultrasonographic examination was helpful in diagnostic screening for biliary ascariasis. ERC and basket forceps were useful in removing the parasite.
Biliary ; Ascariasis ; success ; Manufactured aid ; Endoscopic retrograde cholangiography

Purpose: The self-expandable metallic stent (SEMS) for colorectal obstruction became covered by national health insurance in January 2012, and it has since become a standard treatment. Here we report the utility of SEMS for colorectal obstruction in our department. 　　Patients and Methods: We retrospectively reviewed 65 patients who underwent SEMS placement for colorectal obstruction in our department from May 2013 to December 2018. We examined age, sex, etiology of colorectal stenosis, purpose of stenting, and tumor location. 　　Results: The technical success rate was 98.5% (64/65) and the clinical success rate was 93.8% (61/65). Technical failure occurred in 1 case because the guidewire could not pass the stenosis. Adverse event rates were 1.6% within 7 days and 4.7% after 7 days. 　　Conclusion: SEMS placement had a high technical success rate and few adverse events. Clearly SEMS placement is a minimally invasive procedure that is effective for improving QOL. The safety and effectiveness of this procedure appeared to be excellent.