larva migrans

larva migrans
A larval worm, typically a nematode, that wanders for a period in the host tissues but does not develop to the adult stage; this usually occurs in unusual hosts that inhibit normal development of the parasite. [L. larva, mask, + migro, to transfer, migrate]
- cutaneous l. a migratory serpiginous or netlike tunneling in the skin, with marked pruritus, caused by wandering hookworm larvae not adapted to intestinal maturation in humans; especially common in the eastern and southern coastal U.S. and other tropical and subtropical coastal areas; various hookworms of dogs and cats have been implicated, chiefly Ancylostoma braziliense of dog and cat feces from beaches and sandboxes in the U.S., but also Ancylostoma caninum of dogs, Uncinaria stenocephala, the European dog hookworm, and Bunostomum phlebotomum, the cattle hookworm; Strongyloides species of animal origin may also contribute to human cutaneous l.. SYN: ancylostoma dermatitis, creeping eruption, cutaneous ancylostomiasis, ground itch, water itch (1).
- ocular l. visceral l. involving the eyes, primarily of older children; clinical symptoms include decreased visual acuity and strabismus.
- spiruroid l. extraintestinal migration by nematode larvae of the order Spiruroidea, not adapted to maturation in the human intestine; caused chiefly by species of Gnathostoma spinigerum and G. hispidum in Japan and Thailand, following ingestion of uncooked fish infected with encapsulated third-stage infective larvae, and possibly by ingestion of infected copepods (the first intermediate host) in contaminated drinking water; the anteriorly spined larvae produce serpiginous tunnels in the skin or may cause subcutaneous or pulmonary abscess, or may invade the eye or brain.
- visceral l. a disease, chiefly of children, caused by ingestion of infective ova of Toxocara canis, less commonly by other ascarid nematodes not adapted to humans, whose larvae hatch in the intestine, penetrate the gut wall, and wander in the viscera (chiefly the liver) for periods of up to 18–24 months; may be asymptomatic or may be marked by hepatomegaly (with granulomatous lesions caused by encapsulated larvae in the enlarged liver), pulmonary infiltration, fever, cough, hyperglobulinemia, and sustained high eosinophilia.

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larva migrans n, pl larvae mi·gran·tes -.mī-'gran-.tēz CREEPING ERUPTION

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1. a life stage of certain parasitic larvae in which they wander through the body of their host. 2. infestation by such a wandering parasitic larva. 3. cutaneous l. migrans.

Medical dictionary. 2011.

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  • Larva migrans — cutanée Classification et ressources externes Nombreux sillons serpigineux de progression lente, caractéristiques de larva migrans cutanée CIM 10 …   Wikipédia en Français

  • Larva Migrans — Signe caractéristique : petit cordon sous cutané, érythemateux, prurigineux, serpigineux, mobile, chronique, ici localisé à un pied. La larva migrans cutanée est une affection dermatologique due à la pénétration dans la peau de larve d un… …   Wikipédia en Français

  • Larva migrans — can refer to:* Cutaneous larva migrans, a skin disease in humans, caused by the larvae of various nematode parasites * Visceral larva migrans, a condition in children caused by the migratory larvae of nematodes * Ocular larva migrans, an ocular… …   Wikipedia

  • Larva migrans — Кожная форма larva migrans МКБ 10 B76.976.9 МКБ 9 126.9126.9 DiseasesDB …   Википедия

  • Larva migrans — Klassifikation nach ICD 10 B76.9 Hakenwurm Krankheit, nicht näher bezeichnet (Larva migrans cutanea o.n.A.) …   Deutsch Wikipedia

  • Larva migrans — kriechender Ausschlag (m), Dermatomyiasis (f), Larva migrans (f), tropische Dermatitis (f) eng creeping eruption, cutaneous helminthiasis, cutaneous larva migrans …   Arbeitssicherheit und Gesundheitsschutz Glossar

  • Larva migrans ocular — es una enfermedad del ojo humano producida por la invasión de este órgano por larvas de varias especies de nematodos parásitos. Las principales especies que lo producen son Toxocara canis, parásito habituales de los perro y otros cánidos y… …   Wikipedia Español

  • Larva migrans cutáneo — 220px Clasificación y recursos externos CIE 10 B76.9 CIE 9 126.9 …   Wikipedia Español

  • larva migrans cutánea — f. parasit. Conjunto de alteraciones cutáneas provocadas por la presencia de larvas de gusanos helmintos en la piel. Medical Dictionary. 2011 …   Diccionario médico

  • Larva migrans cutanea — Klassifikation nach ICD 10 B76.9 Hakenwurm Krankheit, nicht näher bezeichnet (Larva migrans cutanea o.n.A.) …   Deutsch Wikipedia

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