April 6, 2021


Dermatobia hominis occurs widely in tropical parts of Latin America; it is the most common cause of furuncular myiasis in this region. The continuous increase in. However, in almost all cases, surgery is not necessary. In Belize, where I have extensive experience in this area (including my own D hominis. Images in Clinical Medicine from The New England Journal of Medicine — Myiasis Due to Dermatobia hominis (Human Botfly).

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The larva feed on tissue exudates Dermatobka et al. Dermatobia hominis occurs widely in tropical parts of Latin America; it is the most common cause of furuncular myiasis in this region. A serosanguinous fluid begins to exude from the lesion during the second week. After any of these procedures, antibiotics are given to prevent infection.

We made an incision on the nodules after local anesthesia with lidocaine. Schwartz E, Gur H. The entire life cycle takes 90 to days Harwood and James, Get Email Updates To receive email updates about this page, enter your email address: These obligatory myiasis-producing flies should be considered in the differential diagnosis in cats with an appropriate hominus or travel history.

Medical and Veterinary Entomology After the extraction, we washed the dermatobis fistula with hydrogen peroxide.

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Dermatobia hominis Linnaeus Jr. Flies in several genera may cause myiasis in humans. Soft tissue ultrasound showing a hypoechoic lozenge-shaped formation in the context of the skin. Journal Clinical Microbiology If clinicians are aware of the existence of the disease, the diagnosis can be suspected on the basis of a history of recent travel to the tropics and the presence of a furuncular lesion that does not heal with antibiotic treatment.


Case report and literature review. Lawson RD, Rizzo M. If earlier records were available, they would probably show that this fly has been known by indigenous Americans for centuries Dunn, A definitive diagnosis can be made only after extraction and identification of the typical larva.

In man, several methods have been reported for extraction of larval Dermatobia. Journal of Travel Medicine 9: Additionally, travelers to these regions need to take preventive measures, including applying insect repellent and wearing protective clothing Diaz et al. Among noninvasive techniques, a very wide range of successful procedures have been reported; occlusion with petroleum jelly, pork fat, nail polish, tobacco tar, or bacon strips can cause the maggot to migrate to the surface, making extraction with forceps easier Soft tissue ultrasonography showed a 1.

Dermatobia hominis

The ancient Mayans referred to this parasite as “saglacuru” and believed that it owed its existence to the bite of some kind of mosquito Hoeppli, Dermatobia hominis dermaatobia not meander through the subcutis. Description Back to Top Adult: The adult Dermatobia hominis is about 1.

Homins myiasis caused by Dermatobia hominis, the human botfly. This page was last edited on 29 Octoberat Emerging imported parasitoses in Italy.

We placed a 1-cm-thick layer of petroleum jelly on the nodule. Clinical Infectious Diseases Third instar maggots extracted, with the posterior side containing the hominls damaged. Flies in the genera Cuterebra, Oestrus and Wohlfahrtia are animal parasites that also occasionally infect humans. Diseases from arthropods and ectoparasitics B85—B89— This cuts off the larva’s air supply and stimulates premature extrusion. Scanning electron microscopy studies of sensilla and other structures of adult Dermatobia hominis L.


One third of the reported cases occurred during the last six years of the study.

CDC – Myiasis – Biology

Our experience shows that the maggots can be easily damaged, so great attention should be paid when performing both invasive and noninvasive extraction techniques.

Antibiotics are usually not recommended in the absence of secondary infection 5.

It has a definite club shape and can be identified by rows of posteriorly directed spines on its anterior segments. It is possible to dermattobia the larva within the nodule Pallai et al. The puparium may exhibit the prominent anterior spiracles of the third instar larva. Six different studies have documented seven reported cases of Dermatobia hominis myiasis in the United States since Lawson et al.

This dipteran fly has a most unusual life cycle. Pan American Health Organization. Dermatobia hominis survives in its host by breathing through spiracles that are flush with the skin. Maier H, Honigsmann H.

Each nodule contains a central pore that denotes the presence of the larva Pallai et al. Dermatobia hominis myiasis among travelers returning from South America.

Dermatobia hominis is a serious pest of livestock in many parts of Latin America Thomas, For this reason, the lesion often secretes pus. Please help improve this article by adding citations to reliable sources.