Congenital Intestinal Aganglionosis in White Foals

@article{Vonderfecht1983CongenitalIA,
  title={Congenital Intestinal Aganglionosis in White Foals},
  author={Steven L. Vonderfecht and Ann T. Bowling and M. Cohen},
  journal={Veterinary Pathology},
  year={1983},
  volume={20},
  pages={65 - 70}
}
A congenital and probably hereditary neurological defect has been identified in the intestinal tract of six foals produced from the breeding of overo (a type of spotting pattern) horses. The foals had white hair and pink skin with the exception of occasional pigmented foci about the muzzle, ventral abdomen, and hindquarters. The foals appeared normal at birth, but within a few hours developed symptoms of colic. At necropsy, the only significant finding was a narrow, pale segment of large… 
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