Erucism due to cup moth
Andreia de Oliveira Alves, Fred Bernardes Filho
The Pan African Medical Journal. ;30:16. doi:10.11604/pamj..30.16.15185

Create an account  |  Sign in
AFENET CONF 2018 AFENET CONF 2018
"Better health through knowledge sharing and information dissemination "

Images in clinical medicine

Erucism due to cup moth

Andreia de Oliveira Alves, Fred Bernardes Filho
Pan Afr Med J. 2018; 30:16. doi:10.11604/pamj.2018.30.16.15185. Published 08 May 2018



A 12-year-old girl was assessed because of a 1-hour history of severe pruritus after contact with a cup moth (A). She has past history of anaphylactic shock to bee sting two years ago. The patient was sitting next to a mango tree and inadvertently put her left arm over a caterpillar. Physical examination revealed an erythematous infiltrated plaque with moderate swelling and an urticarial eruption with some excoriations on left upper limb (B, C); patient had a pulse rate of 78/min, blood pressure of 108/64 mmHg and respiratory rate of 15/min. The patient received prednisone 40 mg/day and loratadine 10mg/day for 5 and 10 days, respectively. Two weeks after the accident, on the final follow-up visit, the patient showed no late effects. Erucism, also called caterpillar dermatitis, is caused by envenomation by the larval or pupal stages of moths or butterflies. Caterpillars transmit their venom through urticating hairs, spines, or setae distributed over their bodies. Rash is the most common clinical manifestation and can range from a mild itching to a very painful sting. The lesions are provoked by caterpillar bristles filled with toxins that penetrate the skin. The bristles are hollow and when they enter the skin and break, toxins that contain thermolabile proteins, proteolytic enzymes and histamine are released. Treatment is supportive and includes washing the site with soap and water, applying cold water compresses, and administering topical or oral antihistamines or corticosteroids.


Corresponding author:
Fred Bernardes Filho, Dermatology Division, Department of Medical Clinics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
f9filho@gmail.com

©Andreia de Oliveira Alves et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

More images in clinical medicine

 
 
 
 
 
 
 
 
    






PAMJ Images in Medicine and Public Health are archived on Pubmed Central. Access PAMJ archives on PMC here

Volume 31 (September - December 2018)

This image


Share this image:

Filter images [Reset filter]

By language

PAMJ is published in collaboration with the African Field Epidemiology Network (AFENET)
Currently tracked by: DOAJ, AIM, Google Scholar, AJOL, EBSCO, Scopus, Embase, IC, HINARI, Global Health, PubMed Central, PubMed/Medline, Ulrichsweb, More to come . Member of COPE.

ISSN: 1937-8688. © 2018 - Pan African Medical Journal. All rights reserved