neurologia clinica
DESCRIPTION
ÂTRANSCRIPT
Case History
• 57 year-old right-handed man presents with neck pain and the sudden onset of neurologic deficits.
• Key findings
– 1. Inability to speak but understands
– 2. Weakness of the right face, arm and leg
– 3. Numbness of the right face, arm, and leg
– 4. Inability to see the right side of the world
– 5. Deviation of the eyes to the left
1. Inabi l i ty to speak but understands
• Aphasia
– Loss of ability to produce or understand
language
• An asymmetric function of the brain
Medina LS, Radiology 2007
Neuroanatomy of Aphasia
1. Broca’s area:
Inability to
speak
2. Wernicke’s
area: Inabilty
to comprehend
2. Weakness o f the r igh t face, arm and leg
• Weakness can result from injury to the…
– Brain
– Spinal Cord
– Peripheral Nerves or their cell bodies
– Neuromuscular Junctions
– Muscles
3. Numbness o f the r igh t face, arm, and leg
• Two parallel systems mediating sensation
from the body
5. Deviation of the eyes to the left
• Each hemisphere is involved in moving the
eyes in the direction away from that
hemisphere