Shwachman--Diamond syndrome associated with autoimmune phenomena

Area of Science:

• Pediatric Endocrinology
• Genetics and Rare Diseases
• Immunology

Background:

• Shwachman-Diamond syndrome (SDS) is a rare autosomal recessive disorder.
• Characterized by exocrine pancreatic dysfunction, skeletal abnormalities (metaphyseal dysostosis), and neutropenia.
• Often presents with failure to thrive, hypotonia, and developmental delay in early childhood.

Observation:

• A 2-year-old boy with SDS presented with failure to thrive, hypotonia, and developmental delay.
• The patient exhibited classic SDS features including short stature, metaphyseal dysostosis, pancreatic insufficiency, and neutropenia.
• During follow-up, the child developed abnormal liver function, edema, pericardial effusion, and hypothyroidism due to autoimmune thyroiditis.

Findings:

• The presence of multiple autoantibodies was confirmed in the patient.
• Autoimmune thyroiditis was diagnosed as the cause of hypothyroidism.
• These findings suggest a potential link between SDS and autoimmune predispositions.

Implications:

• Routine screening for autoimmune markers is advised in SDS patients.
• Early detection of autoimmune conditions can improve patient management and outcomes.
• Identifying autoantibodies may offer novel insights into the pathogenesis of Shwachman-Diamond syndrome.