Question 1 · Hard
A woman has left arm and leg weakness, left sensory loss, ignores objects on the left and has her eyes deviated to the right. Which diagnosis best fits?
- ARight middle cerebral artery infarction
- BLeft anterior cerebral artery infarction
- CLeft lateral medullary infarction
- DRight posterior cerebral artery infarction
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Answer: A · Right middle cerebral artery infarction
Left-sided weakness and sensory loss point to the right hemisphere. Left neglect and gaze deviation toward the lesion, the right side, are typical of a large right middle cerebral artery stroke. The other territories do not explain the combination.
- B: A left anterior cerebral lesion would give right leg weakness.
- C: A left lateral medullary lesion gives crossed sensory loss and bulbar signs.
- D: A right posterior cerebral lesion gives a left field defect without hemiparesis.
Remember this
Left weakness, left neglect and rightward gaze deviation point to right MCA infarction.