Moving lump on woman's face turns out to be worm

Moving lump on woman's face turns out to be worm

In a series of time-lapse photos, the woman revealed how her "lump" traveled from her left eye to the bottom part of her upper lip. They typically choose cats, dogs, wolves, coyotes, foxes and sea lions to live inside. The mysterious bulge, however, started moving, with doctors discovering that there was a worm under her skin for two weeks. Adult females are usually 100-170 mm long by 460-650 µm wide; males are usually 50-70 mm long by 370-450 µm wide. The Centers for Disease Control and Prevention reports that D. repens are not found in the USA, but the country does harbor relatives D. immitis, which cause heartworm disease in dogs, and D. tenuis, which affect raccoons.

According to the US Centers for Disease Control and Prevention, these parasites could grow up to a length of one hundred seventy millimeters and have a lifespan of up to five to ten years. As with other filaria species, mosquitoes transmit infectious microfilariae. In about 35 percent of cases, these lumps move around as the worm migrates through the tissue under your skin.

But according to the report in Parasites & Vectors, if continues to spread, it's possible that it could be introduced in the U.S. by infected dogs who come into the country.

In the case of this particular patient, she had travelled to a rural area outside of Moscow where, her doctor noted, she reported having been frequently bitten by mosquitoes.

"Dirofilaria repens is an emerging parasite of the Old World", Kartashev said. It was "fixed with forceps" and removed surgically.

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The woman experienced some itching and burning and went to an ophthalmologist to get the lump checked out, according to a case study published this week in the New England Journal of Medicine (NEJM).

Mosquitos ingest the undeveloped embryo of this parasitic worm which travels to the gut and matures through three larvae stages. Doctors sometimes call this "creeping eruption". But in rarer cases it has been found elsewhere: the lung, breast, male genitals.

Luckily, the worms are easy to remove and, once yanked out, cause no lasting problems. As told by Dr. Kartashev, the incision did not take more than fifteen minutes.

"After removal of the worm", the doctors wrote, "the patient had a full recovery".

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