PMC9910817_01
Preoperative MRI. Preoperative MRI concerning for multicentric glioma with a dominant lesion involving the brainstem and extending to the left middle cerebellar peduncle greater than the right cerebellar hemisphere and possibly the upper cervical cord.
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FIG1
An MRI revealed findings concerning for a multicentric glioma, with a dominant lesion involving the brainstem with effacement of the cerebral aqueduct causing obstructive hydrocephalus (Figure 1).
Postoperative MRI. Postoperative MRI revealed an interval decrease in the volume of abnormal infiltrative hyperintense T2 signal in the brainstem. The enhancing component of the lesion has also decreased in size, with a further decrease in the size of the ventricles and interstitial edema.
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FIG2
Postoperative MRI at four months showed a decrease in the size of the ventricles and a decrease in the volume of the hyperintense signal and enhancing component of the lesion in the brainstem (Figure 2).