You diagnose two different patients, each with pronounced loss of self and memory issues. Patient 1 tests negative for a neurogenerative disease; while Patient 2 tests positive for a neurogenerative disease. Which of the following summarizes the two patient reports?
1) Patient 1: frontotemporal lobar dementia, areas affected: frontal lobes. Patient 2: Alzheimer's disease, areas affected: medial temporal lobes.
2) Patient 1: vascular dementia, areas affected: frontal and parietal lobes. Patient 2: frontotemporal lobar dementia, areas affected: parietal and occipital lobes.
3) Patient 1: Alzheimer's disease, areas affected: medial temporal lobes. Patient 2: frontotemporal lobar dementia, areas affected: frontal lobes.
4) Patient 1: Rare form of dementia, prognosis: partial recovery likely. Patient 2: common form of dementia, prognosis: progressive, recovery unlikely.
