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This microscopic finding is a feature of Parkinson Disease.

Four days after an influenza, a 41-year-old man developed rapidly progressive ascending motor weakness.  If the lymphocytic infiltrates were seen in peripheral nerves along the segmental demyelination, what is the most likely diagnosis?

Which of the followings describes the common group of primary brain tumors including astrocytomas, oligodendrogliomas, and ependymomas?

An infant born at term had difficulty with movement and flaccid paralysis at 1 year old.  The muscle biopsy shows the following microphotograph.  What is the most likely diagnosis?

A 26-year-old man has a fever and sudden onset of a severe headache after a sore throat.  The following figure shows the surface of his brain.  Which of the following pathogens is most likely the causative factor?  

A diastatic skull fracture refers to

Rupture of a Charcot-Bouchard microaneurysm of the lenticulostriate arteries typically results in:

Which of the following diseases can be transmitted by corneal transplantation?

If the test in the above question is abnormal, which disorder does the patient most likely have?

A 56-year-old woman, with a past medical history of Sjogren syndrome, presented with eyelip drooping and difficulty on chewing food, especially towards the end of the day.  For the diagnosis, which of the following blood tests should her physician perform?