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At least 145 records · Page 8Linked to original sources
PubMed2001

Subcutaneous myiasis caused by Dermatobia hominis.

A case of subcutaneous myiasis caused by the larvae of the Dermatobia hominis fly is described, involving the ankle region of a 25-y-old man who had returned from Peru. After removal of 4 larvae from the affected sites, the lesions healed in 2 weeks without further treatment. Because of the increasing number of people travelling to tropical America, physicians in Slovenia will have to consider Dermatobia myiasis in the differential diagnosis of furuncular lesions in patients with a relevant travel history.

Adult↗
PubMed2005

Eristalis tenax as a cause of urinary myiasis.

Eristalis tenax, belonging to order Diptera, family Syrphidae seldomly causes intestinal myiasis. Urinary myiasis caused by Eristalis tenax larvae is a rare manifestation found in both humans and other vertebrate animals. We report a 58-y-old woman presented with painful mixing and bilateral costo-lumbar pain. The larva in her urine sample was identified as Eristalis tenax related to its typical morphology.

Animals↗
PubMed1988

An unusual case of Phormia regina myiasis of the scalp.

The authors report a case of Calliphorine myiasis in the scalp of a 64-year-old woman caused by the larvae of Phormia regina (Black Blowfly). There was extensive blackening of the scalp and necrosis of the soft tissues, which is unusual in Phormia regina myiasis.

Female↗
PubMed1989

Urogenital myiasis caused by Megaselia scalaris (Diptera: Phoridae): a case report.

A case of urogenital myiasis in a patient with transverse myelitis is reported from Imphal, Manipur, India. The larvae of Megaselia scalaris Lowe were recovered repeatedly from the urine of the patient and were reared to adult to facilitate identification. This is the first known case of urinary myiasis caused by M. scalaris in India.

Adult↗
PubMed2001

Botfly myiasis: case report and brief review.

The painful, boil-like lesion of furuncular myiasis is a result of the invasion of subcutaneous tissues by larvae of Dermatobia hominis, the human botfly. This arthropod is indigenous to Mexico, and Central and South America, and imported cases to the United States are increasing as travel to these regions continues to rise. There are several dozen reports of furuncular myiasis in the United States and Canadian literature since the initial description of this disease in 1920. None of the reports are in the surgical literature, which is surprising because the treatment of choice is surgical excision. Surgical removal sometimes results in damage to the larva with retention of larval fragments in the wound. The authors describe a patient and a novel approach that ensures removal of the intact larva and its surrounding burrow.

Animals↗
PubMed2004

Urinary myiasis associated with ureteral stent placements.

An adolescent with recently removed ureteral stents and exposure to toilet water contaminated with sink flies developed urinary myiasis after stent removal. Poor hygiene, urinary obstruction and retention and decreased general health are known risk factors for developing urinary myiasis. Good hygiene and sanitation practices should be emphasized to patients with indwelling urogenital foreign bodies such as ureteral stents.

Adolescent↗
PubMed1995

Nasal myiasis in leprosy leading to unusual tissue destruction.

Nasal mucosal involvement is a constant feature in lepromatous leprosy (1). Granulomatous infiltration of nasal mucosa and consequent sensory loss may result in atrophic rhinitis and or painless ulceration, which is usually asymptomatic except for later complications of epistaxis, septal perforation, inflammation, and/or myiasis in long neglected patients. An unusual destruction of nasal architecture mimicking cancrum oris caused by myiasis in lepromatous leprosy is described for its rarity.

Adult↗
PubMed1995

Cutaneous myiasis due to Dermatobia hominis: a report of six cases.

We report six cases of Dermatobia hominis myiasis imported into the U.K. from Belize. With increasing international travel, myiasis may be encountered more frequently in countries in which the parasites are not indigenous. The life-cycle of D. hominis is described, and scanning electron micrographs show the detailed appearance of the larva.

Adolescent↗
PubMed1995

Orientation of agents of wound myiasis to hosts and artificial stimuli in Hungary.

The orientation of adults of the myiasis species Wohlfahrtia magnifica and Lucilia sericata to artificial visual stimuli (cloth targets) and olfactory stimuli ('swormlure-4', a potent screwworm attractant), was studied in sheep pastures near to Sárbogard in Hungary. Experiments with odour-baited cloth targets, enclosed in electrocuting grids, demonstrated that colour was an important factor influencing catches on targets: a black target caught most flies of both species, with other colours in the following order of effectiveness, blue > white > yellow. Wohlfahrtia magnifica did not respond to swormlure-4 in the strong manner that L.sericata did. The sex ratios of W.magnifica caught on targets (67.2% males) and hand-netted from fence posts (68.8% males) were similar and biased towards males, whereas that of L.sericata on targets was strongly biased towards females (15.6% males), indicating a fundamental difference in the response of these two myiasis species towards the swormlure-baited targets. The orientation of these two species towards hosts was also recorded together with that of a third species, Phormia regina. Electric nets placed beside infested sheep caught significantly more flies of all three species than those placed beside uninfested sheep or in the absence of sheep. The sex ratio of W.magnifica caught around infested sheep was the reverse of that on targets, with 68.5% females. Wohlfahrtia magnifica responded more strongly to healthy, uninfested sheep than did L. sericata and P.regina. The potential for use of targets both for population monitoring and control is discussed.

Animals↗
PubMed2005

Nosocomial nasal myiasis owing to Cochliomyia hominivorax: a case in French Guiana.

Abstract The larval stages of the fly Cochliomyia hominivorax are responsible for myiasis, which primarily affects wounds. We report the case of a bed-ridden patient with dementia who developed right nasal myiasis during his stay at Cayenne Hospital. Progression was favorable, but the nasal pyramid was partially destroyed. In zones where this fly is endemic, particular attention should be given to hospitalized patients with wounds and consciousness problems.

Aged↗
PubMed1993

Dermal myiasis in an Australian traveller.

Myiasis, the infestation of body tissues by the larvae of flies, occurs infrequently in Australian tourists who return from areas where certain species are endemic. Some of these insect species such as Cochliomyia hominivorax and Chrysoma bezziana (New and Old World screw-worms respectively) are responsible for significant disease in livestock as well as in humans. 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. 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 myiasis, and to obtain accurate identification of the larva.

Adult↗
PubMed2006

Myiasis as a risk factor for prion diseases in humans.

Prion diseases are transmissible spongiform encephalopathies of humans and animals. The oral route is clearly associated with some prion diseases, according to the dissemination of bovine spongiform encephalopathy (BSE or mad cow disease) in cattle and kuru in humans. However, other prion diseases such as scrapie (in sheep) and chronic wasting disease (CWD) (in cervids) cannot be explained in this way and are probably more associated with a pattern of horizontal transmission in both domestic and wild animals. The skin and mucous membranes are a potential target for prion infections because keratinocytes and lymphocytes are susceptible to the abnormal infective isoform of the prion protein. Iatrogenic transmission of Creutzfeldt-Jakob disease (CJD) was also recognized after corneal transplants in humans and scrapie was successfully transmitted to mice after ocular instillation of infected brain tissue, confirming that these new routes could also be important in prion infections. Some ectoparasites have been proven to harbour prion rods in laboratory experiments. Prion rods were identified in both fly larvae and pupae; adult flies are also able to express prion proteins. The most common causes of myiasis in cattle and sheep, closely related animals with previous prion infections, are Hypoderma bovis and Oestrus ovis, respectively. Both species of flies present a life cycle very different from human myiasis, as they have a long contact with neurological structures, such as spinal canal and epidural fat, which are potentially rich in prion rods. Ophthalmomyiases in humans is commonly caused by both species of fly larvae worldwide, providing almost direct contact with the central nervous system (CNS). The high expression of the prion protein on the skin and mucosa and the severity of the inflammatory response to the larvae could readily increase the efficiency of transmission of prions in both animals and humans.

Animals↗
PubMed2004

Cutaneous myiasis due to the Tumbu fly during Operation Keeling.

Cutaneous myiasis is a temporary infestation of the skin with fly larvae (1). The following is a description of a case of cutaneous myiasis caused by the African Tumbu fly (Cordylobia anthropophaga). The clinical presentation and treatment of this infestation is discussed. A review of the Tumbu fly's lifecycle with emphasis on the prevention of the disease in the operational environment is also described.

Adult↗