Doctors suspected man had brain cancer. He actually had worms.
Ars Technica • • health
Key Points:
- A 60-year-old man in Spain presented with worsening headaches and subtle behavioral changes; brain scans initially suggested multiple lesions thought to be metastatic cancer, but further MRI revealed encapsulated tapeworm larvae (neurocysticercosis).
- Despite no international travel history, the man likely contracted Taenia solium tapeworm infection through cryptic transmission at his former construction job, where he worked alongside migrants from endemic regions.
- Neurocysticercosis occurs when tapeworm eggs are ingested via fecal contamination, leading to larvae embedding in the brain, which can cause neurological symptoms ranging from mild to severe.
- The patient was treated with anti-parasitic drugs and corticosteroids, leading to recovery, highlighting the importance of considering parasitic infections in differential diagnoses even in non-endemic areas.
- Doctors emphasized that early recognition of neurocysticercosis can prevent unnecessary cancer treatments and enable prompt, targeted therapy.
