<prompt> An elderly man presents with tremors and gives a family history of dementia, The diagnosis isAlzhiemers diseaseParkinsonism dementia-ALS complexHuntingtons choreaPicks disease  <response>: B Parkinsonism dementia-ALS complex Amyotrophic lateral sclerosis ALS or Lou Gehrigs Disease or Maladie de Charcot or motor neurone disease is a progressive, fatal, neurodegenerative disease caused by the degeneration of motor neurons, the nerve cells in the central nervous system that control voluntary muscle movement The disorder causes muscle weakness and atrophy throughout the body as both the upper lower motor neurons degenerate and die, ceasing to send messages to muscles Unable to function, the muscles gradually weaken, atrophy, and develop fasciculations twitches because of denervation. Eventually, the brain completely loses its ability to initiate and control voluntary movement. Frontotemporal dementia with Parkinsonism-17 FTDP-17 is a type of progressively worsening dementia that affects the frontal front and temporal side regions of the brain. It includes some instances of what was once called Picks disease. Symptoms may include personality changes with loss of social niceties, diminished cognitive capacity and parkinsonism lack of facial expression, slow movements, rigidity and balance problems. 