Doctors in China extracted a 10cm live tapeworm from the brain of a man who had recently experienced a series of epileptic seizures
The 26-year-old man, who was only named as "Liu", had visited the doctor in his home city of Jian, located in Jiangxi province, but the doctor could not determine the cause of the seizures.
Liu then visited the doctors in a leading hospital in Nanchang, where specialists discovered the tapeworm.
Dr Wang Chunliang, who led Liu's treatment, reported that the tapeworm was "springy, white all over, and could swim".
Doctors believe that grilled food that was contaminated or undercooked was the likely cause of the tapeworm
Cases of tapeworm infections are relatively common in China
In May, Stanford researchers found that schoolchildren in China had "high levels of a potentially fatal tapeworm infection".
Shanghai Neuromedical Centre president Guo Hui told South China Morning Post that such cases were often found in areas where water supply was unhealthy or people were used to eating uncooked or half-cooked meat and seafood.
Tapeworms and its eggs need to be killed with proper cooking methods, or else it travels through the blood stream to the body's organs. The brain is the most commonly infected area, as it "receives nearly a quarter of the human body's blood supply", Guo said.