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Intestinal neuronal dysplasia.

D E Schofield1, E J Yunis

  • 1Department of Pathology, Children's Hospital of Pittsburgh, Pennsylvania 15213.

Journal of Pediatric Gastroenterology and Nutrition
|February 1, 1991
PubMed
Summary
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Intestinal neuronal dysplasia, identified via rectal biopsy, is not a distinct disease but a descriptive finding. It appears in various clinical contexts, often alongside prematurity or gastrointestinal issues.

Area of Science:

  • Gastroenterology
  • Pediatric Pathology
  • Histopathology

Background:

  • Intestinal neuronal dysplasia (IND) is a poorly defined condition.
  • Previous studies have lacked clear diagnostic criteria, especially for non-Hirschsprung cases.

Purpose of the Study:

  • To assess the occurrence and clinical significance of "isolated" intestinal neuronal dysplasia.
  • To clarify the histopathologic and clinical features of IND diagnosed by suction rectal biopsy.

Main Methods:

  • Analysis of 498 acetylcholinesterase-stained suction rectal biopsies from 456 children.
  • Exclusion of patients with confirmed Hirschsprung's disease.
  • Evaluation of mucosal acetylcholinesterase staining and submucosal ganglion cell density.

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Main Results:

  • 38 biopsies (38 patients) showed mild to moderate increased mucosal acetylcholinesterase and abundant submucosal ganglion cells.
  • This subgroup presented with heterogeneous clinical histories, including prematurity, feeding intolerance, and obstructive gastrointestinal abnormalities.
  • The findings suggest IND is a descriptive biopsy appearance rather than a unique entity.

Conclusions:

  • "Isolated" intestinal neuronal dysplasia is a histopathologic finding associated with diverse clinical situations.
  • The clinical and histopathologic definition of IND, excluding Hirschsprung's disease, neurofibromatosis, and multiple endocrine neoplasia syndrome, remains unclear.
  • Histologic diagnosis of IND should be reserved for rare, severe cases of parasympathetic hyperganglionosis with adequate tissue sampling.