Thorax and abdomen. This image shows an older definition of hypochondrium, where it is the abdominal region posterior (beneath) the lowest ribs of the thorax.
Front of abdomen, showing surface markings for liver, stomach, and great intestine.
The hypochondrium is the upper part of the abdomen caudal to the lowest ribs of the thorax.[1] The word derives from the Greek term hupokhondros, meaning abdomen, or literally under cartilage.