Hirschsprung’s Disease

Figure 14: This picture shows a “transanal pull-through”. The mucosa (lining) of the rectum has been separated from the muscles by working up through the anus for a few inches. At that point the entire “full thickness” of the rectum and large intestine can be removed out through the anus until a transition zone is seen (black arrow) and the size of the colon becomes larger (white arrowhead) indicating that the portion of the large intestine no longer has Hirschsprung’s disease. The large intestine is divided above the transition zone and sewn to the anus. Biopsies are checked in the operating room to make sure that the large intestine at that point is normal.

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Articles and graphics adapted from O'Neill: Principles of Pediatric Surgery. © 2003, Elsevier.