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Autoimmune enteropathy in Schimke immunoosseous dysplasia
I Kaitila1, E Savilahti, T Ormälä
1Department of Clinical Genetics, Helsinki University Central Hospital, Finland. ilkka.kaitila@huch.fi
Insights
Schimke immunoosseous dysplasia (SID) typically presents with growth issues and infections. This study identifies malabsorption, including increased immunoglobulin A anti-gliadin antibody and villous atrophy, as a new feature of SID.
Area of Science:
- Pediatric Genetics
- Gastroenterology
- Immunology
Background:
- Schimke immunoosseous dysplasia (SID) is a rare genetic disorder.
- Key features include growth retardation, renal failure, recurrent infections, cerebral infarcts, and skin pigmentation.
Observation:
- A 4-year-old male patient presented with classic SID symptoms.
- Additionally, the patient experienced vomiting and prolonged diarrhea.
Findings:
- The study revealed malabsorption as a previously unrecognized feature of SID.
- Evidence included elevated serum immunoglobulin A anti-gliadin antibody levels.
- Histological examination showed steatorrhea and partial villous atrophy in the jejunum.
Implications:
- This finding expands the known clinical spectrum of Schimke immunoosseous dysplasia.
- It suggests that gastrointestinal investigations may be warranted in SID patients presenting with digestive issues.
- Early identification of malabsorption can lead to timely interventions, potentially improving patient outcomes.
Abstract:
The clinical phenotype of Schimke immunoosseous dysplasia (SID) is characterized by growth retardation, renal failure, recurrent infections, cerebral infarcts, and skin pigmentation beginning in childhood. We report here on a 4-year-old male child who had all characteristic symptoms of SID, and, in addition, vomiting and prolonged diarrhea. The study results suggest that malabsorption, demonstrated as increased serum immunoglobulin A anti-gliadin antibody, steatorrhea and partial villous atrophy of the jejunal small bowel, is a previously unrecognized feature of SID.