Neurologic involvement in a child with systemic capillary leak syndrome

Area of Science:

• Pediatrics
• Hematology
• Neurology

Background:

• Idiopathic systemic capillary leak syndrome (SCLS) is a rare, life-threatening disorder characterized by recurrent plasma leakage, shock, hemoconcentration, hypoalbuminemia, and edema.
• SCLS is poorly understood, with limited pediatric cases and no previously reported familial instances.
• Neurological involvement in SCLS is rare, typically mild, and primarily described in adults.

Observation:

• An 8-year-old boy presented with multiple SCLS episodes since infancy.
• The patient exhibited significant neurological complications, including cerebellar edema and autonomic dysfunction.
• A notable family history revealed 8 additional relatives with SCLS, including a sibling who died from a similar condition.

Findings:

• This represents the first reported case of SCLS with a documented family history.
• The patient's presentation includes severe neurological manifestations, unusual for pediatric SCLS.
• The extensive family history suggests a potential hereditary component to SCLS.

Implications:

• This case highlights the possibility of genetic factors contributing to SCLS pathogenesis.
• Further genetic studies in this family could elucidate the underlying mechanisms of SCLS.
• Recognizing neurological involvement and familial patterns may improve SCLS diagnosis and management.