Obstructive Uropathy Caused by Massive Fecal Impaction in a Patient With Congenital Anorectal Malformation and Neurogenic Bladder.

Anorectal malformations (ARMs) comprise a broad spectrum of congenital anomalies involving both anorectal and urogenital tracts. After diagnosis, urological problems should be evaluated in addition to surgical correction of ARMs. Commonly encountered urological problems in patients with ARMs are recurrent urinary tract infections, vesicoureteral reflux, and chronic kidney disease. Therefore, the proper timing of urination and appropriate defecation habits are essential for preserving renal function in patients with ARMs. Here, we report a case of acute hydronephrosis by severe stool impaction in a patient with a history of congenital ARMs and neurogenic bladder. In this case, the physicians should consider properly managing chronic constipation and urination in patients with ARMs despite successful surgical corrections.