Perinatally discovered complete tubular colonic duplication associated with anal atresia.

Complete tubular colonic duplication (CTCD) is exceedingly rare. The association of CTCD with an anorectal malformation is unusual. This malformation may be found unexpectedly at laparotomy. We present 3 cases of surgically proven neonate CTCD discovered at laparotomy for anal atresia. We reviewed the mode of clinical presentation, the imaging, and laparotomy findings. Our series illustrates that this rare disease presents perinatally in association with anal atresia, with or without other associated anomalies.