A 77-year-old woman had two minor falls, then developed weakness on one side, memory trouble, and a pressure-like headache. Her brain scan showed a fluid collection over the brain, and doctors suspected a slow bleed. When surgeons opened her skull, the tissue they removed turned out to be a rare form of lymphoma growing in the brain's protective lining.
Neurosurgeons and pathologists in Chihuahua, Mexico, described the case Sept. 5 in Cureus. They called it a dural follicular non-Hodgkin lymphoma mimicking a chronic subdural hematoma. In their literature review, they found only one prior report of a grade I follicular lymphoma involving the dura, and that one had looked like a different tumor.