[Colonic atresia]. / Atresia cólica.

Nine cases of colonic atresia, treated in the Departament of Pediatric Surgery of "La Paz" Pediatric Hospital, are reported. They account for 11% of all our intestinal atresias. We review the different etiologic and pathologic theories and classificate our group according to the LOUW and HAYS method. In two cases their digestive anomalies and in one renal anomalies were found to be associated mortality was 11%.