We report the case of a patient with chronic constipation since birth, a strictured area in the distal sigmoid colon, and histologic findings of localized hypoganglionosis. We have compared this entity (zonal colonic hypoganglionosis) and reviewed the literature of all known cases of zonal colonic aganglionosis and hypoganglionosis.
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Roy G. Kadair (1977) studied this question.
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