66-year-old male with a 6-year history of sensory symptoms in the feet and hands. He describes a sensation of cold and stinging in the feet; and numbness in the hands, especially at night. Nerve conduction and EMG demonstrated axonal and demyelinative sensorimotor neuropathy with neurogenic changes in muscles. Follow-up nerve conduction testing that was performed 2 years later showed similar findings.

72-year-old female developed progressive dysarthria and dysphagia. Her doctor describes her speech difficulty as “Spastic dysarthria with slow and nasal speech" and noticed decreased mobility in the tongue and palate. She underwent multiple investigations and started Rilutek. Since there is no biologic marker for ALS, the expert suggests further testing that is focused on trying to rule out other disorders and show diffuse lower motor neuron involvement

45-year-old male who presented with acute onset of flaccid paraparesis more pronounced on the left, sensation of current shocks in both legs and sensory level from the umbilicus downwards. The symptoms have reached their pick within less than a day. On examination the left lower limb was plegic and the right lower limb was partially weak. EMG was interpreted as demyelinating sensorimotor neuropathy. MRI showed hyperintense signals at the dorsal terminal segment of the marrow consistent with myelitis.

71-year-old female developed progressive dysarthria and dysphagia. She underwent multiple investigations and started Rilutek. Her EMG study does not meet published criteria for the electrophysiologic diagnosis of motor neuron disease. In the expert's opinion, a definite diagnosis is not possible at the present time, and there would be utility in repeating clinical and electrophysiologic testing. The expert also recommends to perform pulmonary function testing.

71-year-old female developed progressive dysarthria and dysphagia. Her doctor describes her speech difficulty as “Spastic dysarthria with slow and nasal speech" and noticed decreased mobility in the tongue and palate. She underwent multiple investigations and started Rilutek. The differential diagnosis of isolated swallowing and speaking difficulties include: Early motor neuron disease, Cranial neuropathies, Myopathies, Neuromuscular junction disorders and Neurodegenerative movement disorders.

82-year-old female with severe osteoporosis manifests with vertebral fractures. During treatment with Risedronate, she suffered another fracture. In the expert's opinion, taking into account the patient's age, the presence of fractures and low BMD, the patient is at a very high risk to develop a recurrent fracture so treatment must be given. The expert recommends to rule out secondary causes for osteoporosis such as vitamin D deficiency, to keep a healthy as possible way of life, and change the treatment with Risedronate to Forteo (Teriparatide).