Enlarge / Doctors were able to extract the worm, a D. repens. (credit: Kartashev and Simon)

A 32-year-old woman who visited a rural area outside of Moscow returned home with a surprising stowaway—in her face. And it was a restless one at that, according to a short report published this week in the New England Journal of Medicine (NEJM).

After her trip, she noticed an unusual lump on her cheek, below her left eye. Five days later it was gone, but another had formed just above her left eye. Ten days after that, a lump resurfaced on her upper lip, causing massive swelling.

To track the progress of her roving blemish, she took selfies. In reports to doctors, she said that the nodules caused some burning and itchiness but no other symptoms or problems. She also noted her recent trip and recalled being frequently bitten by mosquitoes.