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Another illustrative case of 'evident' radiological response. A : Sagittal enhanced MRI before the treatment reveals enhancing cystic craniopharyngioma with mural nodule anteriorly. B : After 4 mCi of Holmium-166-chitosan intracavitary injection, MRI follow-up 3 months later showed definite decrease of the cyst volume and the mural nodule. Later, the cyst recurred at 36 months after the treatment.
