Posterior reversible encephalopathy syndrome in a child with Henoch-Schonlein purpura

Area of Science:

• Pediatric Nephrology
• Pediatric Neurology
• Rheumatology

Background:

• Henoch-Schönlein purpura (HSP) is a common childhood vasculitis affecting small blood vessels.
• HSP can impact multiple organ systems, including the central nervous system (CNS) and kidneys.
• Posterior Reversible Encephalopathy Syndrome (PRES) is a neurological condition characterized by specific symptoms and radiological findings.

Observation:

• Central nervous system involvement in HSP, while rare, can be the initial presentation.
• PRES, a syndrome of encephalopathy, visual disturbances, and seizures, shares potential overlapping symptoms with CNS manifestations of HSP.
• This case highlights a 5-year-old patient presenting with acute renal failure and PRES secondary to HSP.

Findings:

• The study identifies a rare but significant association between Henoch-Schönlein purpura and Posterior Reversible Encephalopathy Syndrome in a pediatric patient.
• The patient developed both acute renal failure and PRES, underscoring the systemic nature of HSP.
• This case emphasizes the importance of considering HSP in the differential diagnosis of PRES, particularly in children with characteristic HSP symptoms.

Implications:

• Clinicians should maintain a high index of suspicion for HSP in children presenting with PRES, especially if accompanied by rash, joint pain, or gastrointestinal issues.
• Prompt diagnosis and management of HSP are essential to mitigate the risk of severe complications like PRES and acute renal failure.
• This case contributes to the understanding of rare neurological manifestations of HSP, guiding future diagnostic and therapeutic strategies.