Cutaneous human myiasis due to dermatobia hominis m suite1, k polson2 abstract this is a case report of cutaneous myiasis due to dermatobia hominisin a female physician who had travelled to belize. The larvae of these huge hairy flies are parasitic living inside the skin. The entomological study of the larva removed from the patient presented in this report classified the larva as dermatobia hominis figure 3, which is widely distributed. Dermatobia hominis information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. Dermabacter hominis can be found most commonly on human skin. People traveling with untreated and open wounds are more at risk for getting myiasis. With the increasing extension of our commerce into the south american countries it is likely that more and more tropical parasitic diseases will be introduced into the united states. The human botfly, dermatobia hominis, belongs to the oestroidea family. Dermatobia hominis, the human botfly, has a distribution ranging from northern argentina to southern mexico, and is usually found in warm, humid lowland forests. For language access assistance, contact the ncats public information officer.
Dermatobia hominis in japan from 19742005 as a result of overseas travel to central and south america. Suite, cutaneous human myiasis university of the west indies. West, md from the department of radiology and medical imaging, university of virginia health system, charlottesville, va. Pdf owing to increasing international travel, physicians will encounter more infectious diseases acquired overseas, which may be bacterial.
Cutaneous myiasis is endemic in central and south america but is. Removal of dermatobia hominis larvae from infested skin may represent a. Dermal myiasis in an australian traveller rubel 1993. Bot fly larvae develop within the eggs, but remain on the vector until it takes a blood meal from a mammalian or avian host.
It has also been isolated in a variety of other clinical specimens, including abscesses, infections of bone, a wound, or an eye, and blood cultures. Pdf a rare case of labial myiasis caused by dermatobia hominis. The objective this work was to tell a rare case of parasitic succession of two species of larvae of flies producing of primary myiases, dermatobia hominis and cochliomyia hominivorax, in a 12 yearold youth assisted in an public hospital in sao goncalo rj. In mcalpine jf, wood dmed, manual of neartic diptera, monograph 32.
Human bot fly, torsalo central america, moyocuil mexico. The human bot fly is native to central and south america. After a trip to belize, a 25yearold man noticed an erythematous papule on his upper right chest that. Leakageofalarvabyenlargingtheulcerandinducingbylateral.
Six different studies have documented seven reported cases of dermatobia hominis myiasis in the united states. Removal of dermatobia hominis larvae jama dermatology jama. The larva penetrates the skin through a hair follicle. The posterior end contains the respiratory spiracles to. The aim of this article is to present a rare case of myiasis caused by dermatobia hominis. This patient developed a painful furuncular lesion on the anterior scalp and noted that the lesion drained a serosanguinous fluid for more than a month before definitive treatment. Dermatobia hominis human botfly parasites in humans. Furuncular dermal myiasis is caused by species of hypoderma and wohlfahrtia and by dermatobia hominis. Invasion of mammalian tissue by the larval forms of d.
Dermatobia hominis is a bluebottlelike fly with yellow to orange head and legs. Cutaneous myiasis is endemic in central and south america but is seldom reported from the caribbean islands. Dermatobia species dermatobia hominis name synonyms cuterebra cyaniventris macquart, 1843 cuterebra noxialis goudot, 1845 oestrus humanus howship, 1833 homonyms. Because of the risk of travellers introducing unwanted species of flies into our country, it is important for doctors to suspect the possibility of furuncular. Genetic and rare diseases information center gard po box 8126, gaithersburg, md 208988126 tollfree. Myiasis in dogs in the greater accra region of ghana. We experienced a case of dermatobia hominis infestation from south america. Author summary human myiasis is a neglected disease caused by ectoparasitic infestations of the skin, cavities and wounds by larvae of a wide variety of dipteran flies. Elsendoorn a, landron c, goudet v, penin g, roblot f. It is characterized by large, hard, subcutaneous swellings that develop rapidly, mainly in the scapular and adjacent areas chest, neck, shoulders, and ribs. Human bot fly, torsalo ufifas edis university of florida. There are about 150 botfly species but only dermatobia hominis uses man as a host.
Cutaneous myiasis from dermatobia hominis sciencedirect. Pdf dermatobia hominis the human botfly presenting as a scalp. Afakye,1 and ndichu maingi3 abstract myiasis is the infestation of tissues of live vertebrate animals and humans with dipterous larvae. Cutaneousmyiasiscausedby dermatobia hominis acquiredinjamaica.
Eventually a larva dermatobia hominis was delivered, and the patients lesion resolved. An egg, after being glued onto a paratenic host for transport to the vertebrate host requires 59 days to develop, after which it requires an additional 27128 days to pass through the three larval. Simple and effective field extraction of human botfly. Human botfly infestation in the united states jama jama. The human botfly, dermatobia hominis, is one of several species of flies, the larvae of which parasitise humans. The larvae are more frequently found in infected areas that present necrotic tissue. Fly larvae need to be surgically removed by a medical professional. The first will include only imported cases, in which some factor in the life history will. Myiasis is defined as infestation of a vertebrate host by fly larvae that feed on living tissue, body fluids, or ingested foods.
The larvae feed under the skin, causing often episodically painful, swollen, draining cutaneous lesions with a typical airpore. Closeup of the anterior end of a larva, showing the mandibles and one of the anterior spiracles. The full text of this article is available in pdf format. Protozoa flagellates intestinal enteromonas hominis. Orbital myiasis dermatobia hominis complicating secondary squamous cell carcinoma of medial rectus muscle rajendra p maurya, ishan yadav, virendra p. Dermatobia hominis demthooverview eppo global database. As mentioned previously the distinguishing characteristic of d. The authors present a cas of subcutaneous myasis caused by the ver macaque tropical warble fly dermatobia hominis in dog. Dermatobia hominis integumentary system merck veterinary. Treating infestations of the human botfly, dermatobia hominis.
It is also known as the torsalo or american warble fly, though the warble fly is in the genus hypoderma and not dermatobia, and is a parasite on cattle and deer instead of humans. Passos mr, barreto na, varella rq, rodrigues gh, lewis da june 2004. Information from its description page there is shown below. Cutaneous myiasis from dermatobia hominis wilderness. Department of agriculture third instar human bot fly larva, dermatobia hominis. Mouth hooks are located on the anterior end to right, enlargement shown in offset photo. Dermatobia hominis definition of dermatobia hominis by. Human bot fly, dermatobia hominis, adult female, pinned specimen photo. We conclude that myiasis is endemic in both temperate and tropical regions. The fly is not known to transmit diseasecausing pathogens, but the larvae of dermatobia hominis will infest the skin of mammals and live out the larval. Commons is a freely licensed media file repository. Damage of the larvae may also occur, as in the case reported by file et al1 in the. Inflammatorynodule,withasmallcentralulcer,locatedontheback.
Singh, prashant bhushan department of ophthalmology, institute of medical sciences, banaras hindu university, varanasi221005 up, india. Pupa of the human bot fly, dermatobia hominis linnaeus jr. There is no cytostome, and the flagella are rarely visible unless motile organisms are seen. The human bot fly, dermatobia hominis, is a parasite of humans, cattle, swine, cats, dogs, horses, sheep, and other mammals and a few birds in mexico and central and south america. Simple and effective field extraction of human bot. If you have problems viewing pdf files, download the latest version of adobe reader. Furuncular myiasis is caused by dermatobia hominis, the human botfly or cordylobia anthropophaga, the african tumbu fly, which produce boillike lesions commonly misdiagnosed as a furuncle. One third of the reported cases occurred during the last six years of the study. Female dermatobia hominis adults deposit their mature eggs on a bloodfeeding arthropod, usually a mosquito or a tick, that is captured by the bot fly in flight. The posterior end contains the respiratory spiracles to left. This case provided significant data relating to the life span, and the growth and development of the larval stages of dermatobia. Cases of human dermatobia hominis myiasis reported from nonindigenous people are diagnosed when travel ers bring the parasite back with them from central. Dermatobia hominis is the most common species of fly that parasitizes humans. Backward projecting spines on larva of the human bot fly, dermatobia hominis linnaeus jr.
Dermatobia eggs can also be transmitted by nonbiting. Myiasis is a parasitic infestation of vertebrate animal tissues due to maggots of twowinged flies diptera that feed on living or necrotic tissue. Myiasis with dermatobia hominis in a traveler returning from costa. Furuncular dermal myiasis from dermatobia hominis jama network. Dermatobia hominis reach sexual maturity soon after emergence from the puparium, and viable eggs may be laid as of the second day of adulthood. This patient developed a painful furuncular lesion on the anterior scalp and noted that the lesion drained a serosanguinous fluid for more than a. Inflammatory reaction to the human botfly, dermatobia. Dermatobia hominis, furuncular myiasis, human botfly, phoresis, foreign travel, cutaneous. The eggs hatch when the vector settles on a warmblooded animal2. The continuous increase in international travel has increased the possibility of observing this pathology outside endemic countries, especially in travelers returning from the tropics. Dermatobia hominis synonyms, dermatobia hominis pronunciation, dermatobia hominis translation, english dictionary definition of dermatobia hominis. Wiley online library will be unavailable for up to 3 hours on saturday 19th march 2016 from 11. Dermatobia hominis occurs widely in tropical parts of latin america. Infestation of cattle has important economic consequences.
Occurrence of the human botfly, dermatobia hominis, has been unknown in the united states according to the files of the entomology department of the us department of agriculture and the florida state board of health. Dermatobia hominis definition of dermatobia hominis by the. The objective of this report was to present a case of penile myiasis caused by larvae of the fly dermatobia hominis, which enter in the differential diagnosis of genital ulcer. Dermatobia hominis metadata this file contains additional information such as exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.
Extraction of a human botfly dermatobia hominis larva. We present a case report of cutaneous myiasis in a foreign traveler who was infected by dermatobia hominis while visiting south america. Get a printable copy pdf file of the complete article 400k, or click on a page image below to browse page by page. We report a patient who travelled extensively through south america and returned to australia with a subcutaneous nodule containing a large larva of the species dermatobia hominis. Lechiguana is a sporadic, chronic disease of cattle that, thus far, has been reported only from southern and southeastern brazil, in areas where infection by dermatobia hominis is common.
The continuous increase in international travel has increased the possibility of observing this pathology outside endemic countries, especially in. Download the hominis font for free or use it to generate a fancy logo using the custom graphics generator. Further, it showed that the life cycle could occur within less than the. Dermatobia hominis wikipedia, a enciclopedia livre. Dermatobia hominis pdf dermatobia hominis occurs widely in tropical parts of latin america. Myiasis in dogs in the greater accra region of ghana sherry a.
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