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35-year old found unconscious in a local pub (No lateralizing neurologic…
35-year old found unconscious in a local pub
No lateralizing neurologic signs and normal brainstem functions
intoxications
alcohol
sedative drugs
opiates
metabolic and electrolytes disturbances
anoxia
hyponatremia
hypernatremia
hypercalcemia
diabetic acidosis
systemic
infections
Pneumonia
Septicemia
Typhoid fever
Malaria
Waterhouse-Friderichsen syndrome
Environmental
Heat stroke
Hypothermia
Carbon monoxide
Seizures
Post -seizure states
Status epilepticus
Subclinical epilepsy
hypertensive encephalopathy
eclampsia
concussion
No lateralizing neurologic signs
Meningeal irritation with or without fever
Excess of WBC or RBC in CSF
CNS infections
Viral encephalitis
Acute bacterial meningitis
Subarachnoid hemorrhage from ruptured aneurysm
Arteriovenous malformation
Trauma
Miscellaneous:
Fat embolism
Cholesterol embolism
Carcinomatous and lymphomatous meningitis
Lateralizing cerebral signs
Hemispheral hemorrhage
(basal ganglionic, thalamic)
Infarction (large middle cerebral artery territory) with secondary brainstem compression
Brain abscess, subdural empyema
Epidural and subdural hemorrhage, brain contusion
Neoplasms
Brain tumor with surrounding edema
Brainstem infarction due to basilar artery thrombosis or embolism
Cerebellar and pontine hemorrhage and infarction