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Updated: Jun 19, 2026

Intravital Imaging of Intraepithelial Lymphocytes in Murine Small Intestine
Published on: June 24, 2019
Microvillus inclusion disease: progressive mucosal pathology. A scanning and transmission electron microscopic study,
1Section of Pediatric Gastroenterology, Hepatology and Nutrition, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA. POLEYR@ecu.edu
Abstract:
An infant of African-American descent presented in the immediate newborn period with secretory diarrhea, the cause of which turned out to be microvillus inclusion disease (MID). Small intestinal mucosal biopsies at 6 weeks of age were diagnostic for MID by electron microscopy and repeat biopsies from the small intestine at 15 months demonstrated the seeming relentless progression of this disorder, when a normal structure and organization of small intestinal mucosa was no longer recognizable. Since the child could not tolerate any form of enteral nutrition, a small intestinal transplant was contemplated, but could not be done. The patient did not survive the consequences of an overwhelming sepsis, which resulted in multi-organ failure.
Insights
Microvillus inclusion disease (MID) is a severe congenital diarrheal disorder. This case highlights the rapid progression of MID in an infant, leading to complications and ultimately, sepsis and multi-organ failure.
Area of Science:
- Gastroenterology
- Pediatric Pathology
- Genetics
Background:
- Microvillus inclusion disease (MID) is a rare, inherited disorder of the small intestine.
- It is characterized by congenital secretory diarrhea, leading to severe malnutrition and failure to thrive.
- Early diagnosis and management are crucial for affected infants.
Observation:
- An infant of African-American descent presented with secretory diarrhea shortly after birth.
- Electron microscopy confirmed microvillus inclusion disease (MID) in small intestinal biopsies.
- Repeat biopsies at 15 months showed significant disease progression and loss of normal mucosal architecture.
Findings:
- The infant could not tolerate enteral nutrition due to the severity of MID.
- Despite consideration for small intestinal transplantation, the patient's condition deteriorated.
- The infant succumbed to overwhelming sepsis, resulting in multi-organ failure.
Implications:
- This case underscores the aggressive nature and rapid progression of microvillus inclusion disease.
- It highlights the challenges in managing MID, including nutritional support and surgical interventions.
- The fatal outcome emphasizes the critical need for further research into effective treatments for MID.
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