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Images of a 50-year-old female with headache. (a) T1-weighted axial image showing the hypointense lesion in the insular region. (b) T2-weighted image showing the insular glioma. (c) T1-weighted sagittal contrast image showing the nonenhancing lesion involving zones I and II primarily. (d) Delayed postoperative T1-weighted image showing resection of the tumor. (e) Delayed postoperative flair image showing excision of the tumor with radiation changes
