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) Time is Up! Time's up