Man hospitalized with seizures discovers tapeworm was in brain for decades

A man hospitalized with mysterious seizures and an "altered mental status" had tapeworms living in his brain for decades, according to researchers. 

The man, who had immigrated from rural Guatemala, was combative and disoriented until he arrived at the hospital, where he had a witnessed generalized tonic-clonic seizure.

Although the patient's eyes were open – with an involuntary upward gaze – he did not verbally respond to questions or follow commands.