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Moore, T.C. et al.

Hirschsprung's disease discordant in monozygotic twins: a study of possible environmental factors in the production of colonic aganglionosis.

The occurrence of Hirschsprung's disease, with histologically verified colonic aganglionosis, in only 1 of 2 prematurely born and presumed identical (monozygotic) twins is reported. The occurrence of monozygotic twinning was supported by the observed sharing of a single and common placenta and by ABO and HLA identity of peripheral blood erythrocytes and leukocytes. The affected twin was of a slightly lower birth weight and experienced early respiratory distress, necrotizing enterocolotis, and more prolonged umbilical artery catheterization (no encountered in the unaffected twin). This, to the authors' knowledge, is the first reported occurrence of Hirschsprung's disease discordant in monozygotic twins. The literature relating to genetic and environmental factors in clinical and experimental colonic aganglionosis is reviewed and speculation is presented regarding the occurrence of colonic aganglionosis discordant in monozygotic twins as reported here.[1]

References

Hirschsprung's disease discordant in monozygotic twins: a study of possible environmental factors in the production of colonic aganglionosis. Moore, T.C., Landers, D.B., Lachman, R.S., Ament, M.E. J. Pediatr. Surg. (1979) [Pubmed]

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