[The morphology of small bowel in small bowel atresia and stenosis]

The morphologic analysis of 24 operation specimens of small bowel atresia and stenosis reveals: 1. The classification in the 4 common types of atresia is without importance for the operative management in the newborn. 2. Widely important are systemic structural changes of the atretic, preatretic, and the oral small bowel, the associated intraabdominal malformations, and the mucoviscidosis. The morphological damages at the small bowel in atresia are shown in detail. In some cases the results of the histological examination elucidate vascular alterations caused by small bowel obstruction, The severe destructing pre-atretic small bowel should be resected.