Hookworm-related Cutaneous Larva Migrans with Exceptional Multiple Cutaneous Entries
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Abstract:
A 60-year-old white male, who came from a rehabilitationassisted living facility in Miami, Florida, presented with multiple intensely pruritic migratory erythematous serpiginous tracks for 10 days over his left calf, left anterior leg, and right thigh.There were also hyper-pigmented macules around the tracks with overlying crust (Figure 1).Patient stated that he had been living some time in a bush and sleeping on the ground where stray animals defecate.He was previously treated for scabies with permethrin without success, otherwise unremarkable medical history.Based upon the typical characteristics of the lesions and epidemiologic history, a diagnosis of HrCLM was suspected, but due to the unusual multiple lesions, skin punch biopsies were performed from the left buttock and right posterior lower leg.Histologic sections showed several small intraepidermal cavities, likely corresponding to larva tracks (Figure 2A) associated with eosinophil-rich dermal mixed inflammatory cell infiltrates (Figures 2B and2C).Histology failed to demonstrate larvae itself.However, given the characteristic clinical presentation and overall histological features, the diagnosis of HrCLM was made.Keywords:
Cutaneous larva migrans
Visceral larva migrans
Larva migrans (LM) refers to the prolonged migration and persistence of helminth larvae in the organs and tissues of humans and animals, and also refers to the disease entities resulting from paratenic larval migration. This chapter focuses on zoonotic LM caused by the canine and feline ascarids, raccoon ascarid, gnathostomes, and hookworms of animals. Toxocariasis is a helminthic infection caused by larvae of Toxocara spp. Only two species, T. canis and T. cati, are known to cause disease in humans. Baylisascaris procyonis causes visceral larva migrans, neural larva migrans, and ocular larva migrans of humans. Gnathostomiasis, caused by Gnathostoma, has been clearly linked to certain unsafe food preparation practices and consumption of infected fish and meat carrying the larvae. Cutaneous larva migrans caused by the larvae of skin-penetrating nematodes, most commonly the animal hookworms.
Paratenic
Visceral larva migrans
Toxocara cati
Cutaneous larva migrans
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Mediastinitis
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저자들은 수년 전부터 정기적으로 다량의 소의 육회, 간, 천엽을 생식하는 51세 여자 환자에서 내장 유충 이행증과 안구 유충 이행증이 병발하여 알벤다졸과 스테로이드 치료로 후유증 없이 호전된 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. 중심 단어: 개회충증; 내장 유충 이행증; 안구 유충 이행증
Visceral larva migrans
Cutaneous larva migrans
Toxocara cati
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Cutaneous larva migrans
Visceral larva migrans
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The syndrome of visceral larva migrans was described for the first time in 1952 by Beaver. He demonstrated that the presence of nematodes larvae, particularly in the liver, were those of Toxocara canis and T. cati. Baylisascaris procyonis, the common racoon ascarid in the U.S.A. can also cause serious diseases in human. Digestive and respiratory clinical symptoms are usually moderate, however severe disease resulting from invasion of the myocardium or the brain has been reported. A blood hypereosinophilia is usually present the first few years after infection. Diagnosis uses serological methods, among them the ELISA test. Ocular larva is also possible with in that case, immunological modifications of the aqueous. Cutaneous larva migrans characterized by a linear, progressing, serpigenous eruption and intense itching is easy to diagnose. Larva migrans is due to dogs, cats and horses helminths. Dogs and cats (referred here as pets) now receive antihelmintitic treatments and parasites are now in decrease.
Visceral larva migrans
Toxocara cati
Cutaneous larva migrans
Hypereosinophilia
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A 42-year-old man presented with a 1-week history of intensely pruritic eruption on the dorsum of his right foot. He had gone for a barefoot stroll on the beach a few days before the onset of serpiginous, erythematous raised tracts with bulla formation.
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Visceral larva migrans
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Abstract The treatment of cutaneous larva migrans and Toxocara infection relies on antihelminthic agents such as thiabendazole, albendazole and ivermectin. The efficacy of these agents varies according to the helminthic disease.
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CERTAIN parasitic helminths of lower animals are capable of infecting a variety of mammalian species that are not their definitive hosts. Under such conditions the invading larvae usually do not develop further but may survive indefinitely in the tissues. If these animals form part of the food chain of the definitive host, the parasite's life cycle is eventually completed. When human beings are accidentally infected with these worms, severe, irreversible or even fatal damage may result. Although several scientists speculated previously that man could be infected by these parasites, it was not until 1952 that larvae of Toxocara canis, . . .
Visceral larva migrans
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Visceral larva migrans
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