Postoperative Hirschsprung's associated enterocolitis (HAEC): transition zone as putative histopathological predictive factor.

This study suggests that TZ<2.25 cm predicts the risk of post-HAEC. Preoperative clinical and histopathology inflammation may predispose to worst post-HAEC. Readily available histopathological findings might help identifying patients at higher risk for HAEC and implementing prevention strategies.