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[Intestinal neuronal dysplasia type B: how do we understand it today?]
1Institut für Pathologie, Universitätsspital Basel, Schönbeinstrasse 40, 4031 Basel, Switzerland. elisabeth.bruder@unibas.ch
Der Pathologe
|February 7, 2007
Summary
Intestinal neuronal dysplasia type B (IND B) is a subtle malformation of the submucosal plexus. Diagnosis requires specific age-related morphological criteria, and most cases resolve spontaneously with conservative treatment.
Area of Science:
- Gastroenterology
- Pediatric Pathology
- Neurogastroenterology
Context:
- Intestinal neuronal dysplasia type B (IND B) is characterized by an increased proportion of oversized ganglia in the submucosal plexus.
- This condition may be associated with mild, chronic gastrointestinal motility disturbances.
- Diagnosis relies on morphological assessment of giant ganglia, considering age-related physiological variations.
Purpose:
- To define the diagnostic criteria for IND B, emphasizing age-appropriateness.
- To review the clinical presentation, natural history, and management of IND B.
- To highlight the current gaps in understanding IND B pathogenesis and etiology.
Summary:
- IND B diagnosis is morphologically based on giant submucosal ganglia, not before 1 year of age.
- It can be isolated or adjacent to aganglionic segments; spontaneous resolution of IND B and constipation may occur by age 4.
- Treatment is typically conservative, with surgery reserved for a minority of cases.
Impact:
- Standardized diagnostic conditions are crucial for advancing research into IND B.
- Further investigation is needed to elucidate the unknown etiology and pathogenesis of aberrant ganglion development.
- Improved understanding will facilitate more targeted therapeutic strategies for affected children.
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