Localising the lesion: “where in the CNS”

CNS = Brain and spinal cord. ... Frontal lobe. Reasoning, planning, parts of speech, movement, emotions and problem solving. ... CT head shows extensive oedema surrounding the subtle impression of a ring enhanced lesion in the left frontal lobe, extending into the left parietal lobe. There is associated mass effect displacing the lateral ventricle ................
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