Doctors Discover 50-Year-Old Live Tapeworm in Patient During Routine Surgery

During a routine hernia repair surgery on a 71-year-old man in South Korea, surgeons were shocked to find a live tapeworm approximately 25 centimeters long inside the patient's abdominal cavity. This rare discovery was reported in the New England Journal of Medicine and highlights the extraordinary survival ability of parasites within the human body decades after initial infection.

The patient had previously undergone a similar surgery four years earlier, during which another tapeworm about 18 centimeters long was removed from the opposite side of his body. Laboratory PCR tests identified the parasite as Spirometra erinaceieuropaei, and the patient was diagnosed with sparganosis. Upon inquiry, the patient recalled consuming raw snake meat multiple times during his military service 50 years ago, believing it would enhance his physical strength.

Remarkably, the parasite had not caused inflammation, pain, or neurological symptoms, and the patient responded well to antiparasitic medication. Sparganosis is an extremely rare disease with roughly 2,000 documented cases worldwide. Infection typically occurs through eating raw or undercooked meat from snakes or frogs or drinking water contaminated with infected crustaceans. While the parasite can sometimes migrate to the brain or central nervous system, posing serious risks, in this case, a silent coexistence appeared to have developed.

Medical experts emphasize the importance of thorough dietary and travel history assessments in patients presenting unexplained symptoms, especially those with exposure to reptile or amphibian meat in endemic regions. This case underscores how tapeworm larvae can survive asymptomatically in the human body for decades, complicating diagnosis and treatment.