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Which of the following is not a known side effect of chronic phenytoin use?
The anatomical structure identified in the image below (blue arrow) derives from which of the following embryonic tissues?
Which of the following blood vessels that supply the thalamus is the only one to branch off of the posterior communicating artery (PCOM) instead of the posterior cerebral artery (PCA)?
Which of the following structures is supplied by the recurrent artery of Heubner?
A 66-year-old female comes to the EMG lab with the chief complaint of muscle cramps in the right lower extremity. She started having symptoms after treatment with a cholesterol-lowering medication but despite discontinuing the medication her symptoms persisted. Reflexes are 2+ in upper and lower extremities, except 1+ in the right Achilles. Nerve conduction studies of both lower extremities were normal. An EMG was performed and shown below. What is the most likely diagnosis?
A 23-year-old female with a past medical history of depression presents with right arm paralysis that started after she found out her boyfriend died from a motor vehicle accident. Her physical exam shows no effort during muscle strength testing and positive withdrawal when a noxious stimulus is applied. The rest of the neurological examination, including reflexes, was normal. MRI of the brain and cervical spine were unremarkable. Which of the following is the most likely diagnosis?
A 62-year-old man comes to the clinic complaining of a 2-month history of difficulties getting up from a chair, climbing steps at work, and lifting objects above his head. His primary care physician also noticed a rash on sun-exposed areas of the man’s body. EMG of proximal muscles on this patient with likely reveal which is the following?
Which of the following is the most classic finding of early inclusion body myositis?
A 4-month-old boy is brought by his parents due to difficulty in feeding, and episodes of apnea. Physical examination reveals tongue fasciculations, a bulging anterior fontanelle, and an abducens nerve palsy. MRI reveals an Arnold Chiari malformation type II. What additional defect is this child likely to have?