“…Failure of a collection to be handled in either of these two ways results in a subhepatic collection that may remain localized or extend into the subphrenic space or peritoneal cavity. Anatomically most collections occur to the right of the falciform ligament, in either the right subhepatic or right subphrenic space [11], as these areas are particularly vulnerable to infection because of the medium for bacterial growth provided by the pool of blood, lymph, bile, and the denuded liver bed. Chest films may show changes at the right lung base including fluid, atelectasis, and elevated hemidiaphragm, and conventional x-ray studies may show a mass in the right upper quadrant or abnormal gas collections.…”