• Justin A MacKinnon, George Waterman, Kristina Piastro, Jennifer Oakes, and Denis Pauze.
• Albany Medical Center, Albany, New York.
• J Emerg Med. 2015 Nov 1; 49 (5): e147-9.

BackgroundLepidopterism refers to the manifestations of contact from any number of moths, butterflies, and caterpillars. Various symptoms have been described, ranging from localized skin irritation to systemic anaphylactic reactions.Case ReportWe present a case of airway edema in an 8-month-old child from oral exposure to Woolly Bear Caterpillar (Pyrrharctia Isabella). After prompt emergency department recognition, her symptoms necessitated urgent operating room management by a team of otolaryngologists and close monitoring in a pediatric intensive care unit. A similar presentation in this species has not been described previously in the English literature. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Leptidopterism is rare, but recognition by the emergency practitioner is necessary for prompt and appropriate treatment. Rapid identification by the emergency physician of oral exposure and careful spine removal can be lifesaving in cases of significant oropharyngeal edema.Copyright © 2015 Elsevier Inc. All rights reserved.

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