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Systemic allergic reaction to a caterpillar in a 3-month-old infant

Y Ramesh Bhat1, G Vinayaka, S Sushma

  • 1Department of Paediatrics, Kasturba Medical College, Manipal University, Manipal, Udupi District, Karnataka, India. docrameshbhat@yahoo.co.in

Annals of Tropical Paediatrics
|March 4, 2010
PubMed

Insights

Systemic reactions to tree processionary caterpillars are rare in infants. This case highlights a severe reaction including respiratory distress and shock in a 3-month-old, requiring prompt medical intervention.

Area of Science:

  • Pediatric Dermatology
  • Toxicology
  • Allergy and Immunology

Background:

  • Caterpillar exposure can cause contact dermatitis.
  • Systemic reactions in infants are exceptionally uncommon.
  • Tree processionary caterpillars (Thaumetopoea pityocampa) pose a potential health risk.

Observation:

  • A 3-month-old infant presented with sudden onset rash, severe breathing difficulties, and shock.
  • Maternal report indicated recent exposure to a tree processionary caterpillar.
  • The infant's condition rapidly deteriorated, necessitating emergency care.

Findings:

  • The infant's symptoms were consistent with a severe systemic reaction to caterpillar contact.
  • Treatment involved systemic corticosteroids and antihistamines.
  • Despite treatment, the rash showed prolonged persistence for over five days.

Implications:

  • This case underscores the potential for severe systemic reactions in infants following caterpillar exposure.
  • Highlights the importance of considering environmental toxins in pediatric emergencies.
  • Emphasizes the need for prompt recognition and management of rare but serious pediatric toxicological events.

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