A 70-year-old woman had an episode 2 days earlier

during which she lost consciousness for several minutes. On

physical examination, there is 4/5 motor strength in the right

upper extremity and decreased sensation to pinprick on the

right arm and hand. There are bilateral carotid bruits. CT scan

of the head shows no intracranial hemorrhage, but there is a

slight midline shift; MRI of the brain shows edema near the

left internal capsule. A lumbar puncture is performed with

normal opening pressure. Laboratory studies on 10 mL of

clear, colorless CSF show two mononuclear WBCs/mm3, no

RBCs, protein concentration of 40 mg/dL, and glucose concentration

of 70 mg/dL. The serum glucose concentration is

95 mg/dL. Which of the following laboratory findings is most

suggestive of the risk factor for her disease?

A 27-year-old woman had an episode of weakness

3 months ago, which she attributed to job stress and fatigue.

The neurologic examination shows mild residual weakness,

with 4/5 motor strength in the right lower extremity. A

lumbar puncture is done, and laboratory examination of the

CSF shows increased IgG levels with prominent oligoclonal

bands. MRI of the brain shows small, scattered, 0.5-cm areas

consistent with demyelination, most of which are located in

periventricular white matter. Which of the following complications

is she most likely to develop?

A previously healthy 21-year-old man with a severe

headache for 5 days now has a new-onset seizure. Papilledema is noted on funduscopic examination. An MRI of the brain shows multiple 0.5- to 1.5-cm cystic periventricular and meningeal lesions. Which of the following infectious organisms is

most likely to produce these findings?

A 19-year-old man has a sore throat followed a day

later by sudden onset of a severe headache. Physical examination

shows mild pharyngitis and nuchal rigidity. His skin

shows petechial hemorrhages. His temperature is 38.8° C,

pulse is 98/min, respirations are 26/min, and blood pressure

is 95/45 mm Hg. The figure shows the representative

gross appearance of the surface of his brain. Which of the following

infectious organisms is most likely to have produced

his disease?

A 72-year-old man with diabetes mellitus has had stepwise cognitive decline for the past 5 years. There is an acute event, such as loss of consciousness or confusion, followed by worsening ability to perform activities of daily living. On physical examination, he has mild right hemiparesis, ataxia, and dysarthria. Dx of this patient is ?

27 years old patient was suffer from accident 1 hours before admission to hospital. she open her eyes in response to pain only, she said inappropriate words, and she localises to central pain...

A young woman suffer from series of relatively short but very painful headaches every day for weeks or months at a time. she tend to get them at the same time each year, such as in the spring or fall...The type of headache of this patient is...