Serum sickness like reaction in an 11-year-old boy

Area of Science:

• Pediatric Rheumatology
• Clinical Case Reports
• Adverse Drug Reactions

Background:

• An 11-year-old Nigerian boy presented with acute polyarthralgia, low-grade fever, facial edema, urticarial rash, pruritus, and throat/ear pain.
• The patient had no significant past medical or surgical history.
• He received penicillin treatment for acute tonsillitis 12 days prior to admission.

Observation:

• The constellation of symptoms suggested an acute hypersensitivity reaction.
• Facial edema, urticarial rash, and pruritus were prominent dermatological manifestations.
• Polyarthralgia and systemic symptoms like pyrexia indicated a potential systemic inflammatory process.

Findings:

• A diagnosis of serum sickness-like reaction was established.
• The patient's symptoms resolved within 48 hours of treatment.
• Treatment involved analgesia and corticosteroid therapy (prednisolone).

Implications:

• This case underscores the importance of recognizing serum sickness-like reactions following antibiotic use in pediatric patients.
• Early diagnosis and appropriate management, including corticosteroids, are crucial for favorable outcomes.
• Clinicians should maintain a high index of suspicion for drug-induced hypersensitivity syndromes in children presenting with similar symptom complexes.