Philippine Rice Farmer's Seizure Traced to Worm Eggs in Brain, Case Report Says

In the moments before the episode, the woman appeared well. She had no headache, confusion or weakness, according to Ars Technica, which reported on the case. The roughly one-minute episode affected half of her body, and she went to an emergency department.

Doctors there examined her physically and found nothing out of the ordinary. Imaging changed the picture. Magnetic resonance imaging revealed a bright cluster of nodules surrounded by fluid in her left frontal lobe.

The doctors' immediate guess was that the nodules were worm eggs, and they suspected neuroschistosomiasis, an uncommon complication of infection with a Schistosoma parasitic worm, also known as a blood fluke. In the Philippines, the most common fluke is S. japonicum, which is also found in China and part of Indonesia. Despite its name, the species has been eliminated from Japan.

The case report describes the woman's diagnosis and the laboratory work that followed, in which the eggs grew tails, confirming the infection, according to the report's account as described by Ars Technica. No further details about her treatment or current condition were provided in the material available.

Neuroschistosomiasis arises when Schistosoma parasites reach the central nervous system, a complication distinct from the more typical forms of schistosome infection. The published report adds the Philippine case to the clinical literature on the condition.