An 80 year old woman presents with a constant, left-sided frontal headache for 2 weeks, which she describes as being severe and disturbing. She also experienced an episode of 'blurring of vision' in her right eye yesterday, which spontaneously resolved after a few minutes. Her medical history is significant for hypertension for 10 years, which is well controlled on losartan alone, and osteoarthritis of both knee joints, which is being treated conservatively. Her full blood count, fasting blood glucose, renal functions and electrolytes, and liver functions are within normal parameters.
ESR: 60 mm/1h (< 15) CRP: 12 ng/ml (< 6)
The MRI scan of the brain appears normal.
The cerebrospinal fluid analysis is within normal parameters.
The biopsy results will be available tomorrow.