An internal hernia is a protrusion of a viscus through a normal or abnormal aperture within the peritoneal cavity. Most internal hernias are the consequence of congenital anomalies of intestinal rotation and peritoneal attachment. Whereas they may occur in the pediatric age group, the majority are clinically encountered in
Fig. 2-61. Wandering spleen.
(a) CT through the upper abdomen reveals a stomach with oral contrast delineating its posterior wall (arrows).
(b) CT through the pelvis of the same patient shows a multilobate mass in the left lower quadrant. The absence of the spleen in the left upper quadrant and visualization of normally located kidneys (not shown) help confirm the diagnosis of a wandering spleen.
adults. Internal abdominal hernias are discussed in detail in Chapter 16.
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.