A CASE OF NECATOR AMERICANUS REVEALED BY UPPER GASTROINTESTINAL ENDOSCOPY

Abstract

A 76-year-old man was admitted to our hospital with right hypochondralgia, Ultrasonographic and percutaneous transhepatic cholangiographic examinations revealed a movable stone in the dilated common bile duct. X-ray examination of upper gastrointes-tinal tract demonstrated a duodenal diverticulum. By endoscopic examination two worms with pinkish color and lcm in length, were found in the duodenal diverticulum. The worms were endoscopically removed by biopsy forceps and diagnosed as Necator americanus. Pyrantel pamoate was administrated and the ova in stool disappeared. Later, the surgical treatment for the common bile duct stone was performed.