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From 1981 to 1989 seventeen cases of pediatric patients with urachal remnants have been treated at the Fukuoka Municipal Children's Hospital (2 patent urachus, 5 urachal cyst, 9 urachal sinus, 1 urachal diverticulum). The cases of patent urachus were discovered in the neonates due to a urine discharge from the umbilicus; in the older children, cysts or sinuses accompanied by an infection led to the diagnosis of the urachal anomaly. In 8 of 11 cases, fistulography established the diagnosis. In 9 of 12 cases, ultrasound imaging was diagnostically successful, as was CT in all 3 cases that were given scans.

Cholelithiasis is an extremely unusual finding in infancy. The following article describes the case of a 2-month-old male with a VACTER association who presented with persistent and progressive obstructive jaundice and acholic stool due to cholelithiasis. Thirty cases under the age of 1, including our case, have previously been reported in the Japanese literature. Twenty-eight cases had predisposing factors. The calculi were present only in the gallbladder in 18 cases, in the common bile duct or cystic duct or both in 7 cases, and in the gallbladder and common bile duct in 3 cases. Ten cases of stones were radiopaque, which thus made the plain abdominal roentgenogram findings very valuable. Nine cases underwent operation including cholecystectomy in 3 cases, choledocholithotomy in 3 cases, and cholecystolithotomy in 1 case, while the procedure was unknown in 2 cases. Recently, the number of reported cases of cholelithiasis in infants has gradually increased and today these cases are most often diagnosed by ultrasonography, because the examination is easy to perform and not invasive.