Case 149 Medical history A 73-year-old retired male attends to a neurologist consult accompanied by his sister complaining of speech and reading difficulties. He has been developing these problems gradually in the past 5 years, progressively deteriorating. Other than that his sister noticed a mood change, more impatient and angry. Patient's autonomy is preserved. MMSE: 26/30. A brain nuclear magnetic resonance was performed. Image 1: Axial view of the brain MR in T2Image 2: Coronal view of the brain MR in T2 Question:Based on the images and clinical picture, which of the following is the most likely diagnosis? Alzheimer disease Vascular dementia Semantic dementia Frontotemporal dementia (behavioural variant) None Time's up
