A 25-year-old woman in Japan was shocked after doctors found a parasitic worm living in her tonsils. The woman began to experience a sore throat a few days after eating assorted sashimi and went to St. Luke's International Hospital in Tokyo for treatment.
As doctors examined the woman, they discovered the 1.5-inch black worm still alive and wiggling around in her throat. They used a pair of tweezers to pull the worm out and conducted a DNA test on it. They identified the specimen as a fourth-stage larva of "Pseudoterranova azaras," which can be found in undercooked seafood and infects a host's stomach.
According to the case study, which was published in The American Society of Tropical Medicine and Hygiene, there have been more than 700 cases of the worm reported in Japan, South America, the Netherlands, and other counties in the North Pacific.
Doctors said that the woman's condition improved once the worm was removed and that her blood test results were normal.