ULTRASOUND FINDINGS OF CONGENITAL POUCH COLON, A VARIANT OF ANORECTAL MALFORMATION

Abstract

Congenital pouch colon (CPC) is a variant of anorectal malformation in which all or part of the colon is replaced by a pouch-like dilatation that communicates distally with the urogenital tract by a large fistula.It is associated with variable length of proximal normal colon.

 It is categorized into four subtypes (Types I–IV) based on the length of normal colon proximal to the colonic pouch^2. O^.ver the years ,incidence of type IV CPC , which is less severe form ,is increasing with low ARM^.3-6This condition has a male preponderance with a male to female ratio of 2.25:1 .³  Type IV CPC has a near normal colon with only its terminal portion converted into a pouch.  This case report illustrates the postnatal sonographic findings of a baby with type IV CPC ,a rare presentation.The aim of this report is to highlight the importance of a careful examination of the morphology as well as the location of the fetal bowel.

KEY WORDS: congenital pouch colon, anorectal malformation