Tubular colonic duplication combined with unilateral renal hypoplasia.

Colonic duplication is a rare congenital abnormality that can be difficult to diagnose, because multisystemic malformations may be present. We report on a hypertensive patient with rather nonspecific symptoms in whom previous diagnoses had failed to detect colonic duplication. In addition to a tubular colonic duplication type I, a hypoplastic kidney was found. This combination has not been reported before.