LM of Trichina larva encysted in human muscle

LM of Trichina larva encysted in human muscle

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Caption: Light micrograph of a larva of Trichina spiralis (formerly called Trichinella spiralis) encysted in human muscle tissue. The dark green oval cyst contains a single coiled larva (stained purple). T. spiralis is a species of roundworm parasitic on carnivores & the cause of trichinosis in humans. It may be found in pigs, foxes, dogs, cats, badgers & rats. Humans contract trichinosis through eating poorly-cooked pork infected with larval cysts. The worms mature in the intestine & release a new generation of larvae which burrow through the intestinal wall & migrate towards the muscles. Magnification: x200 at 35mm, x400 at 6x7cm size.

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Keywords: animal, cyst, diagnosis, histology, invertebrate, invertebrates, light micrograph, medical, microbiology, nature, nematoda, nematode, nematode larvae, parasite, parasitic, parasitic worm, parasitology, roundworm, trichina spiralis, trichinella spiralis, trichinosis, wildlife, worm, zoology

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