This document describes various findings that may be seen on an abdominal x-ray, including signs of small bowel obstruction, duodenal atresia, large bowel obstruction, sigmoid volvulus, colon cancer, colon fibrosis, calcified vas deferens, bladder calculi, renal calculi, staghorn calcification, nephrocalcinosis, and calcified gallstones. It provides radiologists and physicians with key things to look for on an abdominal x-ray and what different findings may indicate.