Presentation
Right-sided hemiparesis.
Patient Data
Age: 40 years old
Gender: Female
From the case:
Arachnoid cyst with mass effect
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Large CSF-isodense extra-axial lesion with marked mass effect on the left cerebrum including the precentral and post central gyri with rightward midline shift, compression of the left lateral ventricle and trapped right lateral ventricle.