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Evaluation of coma
Respiratory abnormalities, blood gas determination, and diagnostic possibilities
Table created by G. Bryan Young, MD; used with permission
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Evaluation of coma
Hypertensive hemorrhage in the pons that ruptured into the fourth ventricle and extended into the midbrain
From the personal collection of G. Bryan Young, MD; used with permission
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Evaluation of coma
Meningioma: coronal contrast-enhanced image demonstrates meningioma in the cavernous sinus on the left side
From the personal collection of William T. Couldwell; used with permission
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Evaluation of coma
Craniopharyngioma: coronal postcontrast MRI
From the personal collection of Marc C. Chamberlain; used with permission
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Evaluation of coma
The principal toxidromes, a constellation of features peculiar to certain classes of drugs
Table created by G. Bryan Young, MD; used with permission
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Evaluation of coma
Torsades de pointes
From the collection of Amar Krishnaswamy; used with permission
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Evaluation of coma
Battle’s sign: superficial ecchymosis over the mastoid process
van Dijk GW. Practical Neurology. 2011;11(1):50-55; used with permission
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Evaluation of coma
Monomorphic ventricular tachycardia
From the collection of Amar Krishnaswamy; used with permission
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Evaluation of coma
Acoustic neuroma: coronal postcontrast MRI
From the collection of Ryojo Akagami; used with permission
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Evaluation of coma
Brainstem hemorrhage in the midbrain that extended from a hypertensive hemorrhage in the pons
From the personal collection of G. Bryan Young, MD; used with permission
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Evaluation of coma
Medulloblastoma: sagittal view MRI showing an avidly enhancing solid and cystic lesion filling the fourth ventricle; obstructive hydrocephalus present
From the collection of Peter B. Storm; used with permission
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Evaluation of coma
Photomicrograph of Gram-stained Streptococcus species bacteria
From the CDC Public Health Image Library
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