A 7-month-old with bilious vomiting.

We present the case of a 7-month-old boy who presented with a history of bilious vomiting, abdominal distention with a mass, anorexia, and no urinary or stool output for 2 days. Air enema demonstrated a mass effect on the rectosigmoid area, with urinary contrast revealing a large Hutch diverticulum with a narrow neck of the urinary bladder. This patient illustrates a rare case of an infant with bilious vomiting.