Acquired distal aganglionosis of the colon.
D001706:Biopsy; D003106:Colon / Q000294:innervation*; D005724:Ganglia / Q000473:pathology*; D006801:Humans; D007223:Infant; D008297:Male; D008531:Megacolon / Q000209:etiology / Q000473:pathology*; D012007:Rectum / Q000294:innervation / Q000473:pathology