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Fig 5. Case 5. 76-year-old man with metastatic brain tumor located inside the right-sided M1.
A-1, Preoperative MR imaging displays heterogeneously enhancing tumor in the M1.
A-2, Postoperative MR imaging shows no residual tumor in the M1.
B, fMRI images activated by left hand clenching (orange) before surgery. fMRI by right hand clenching was not performed before surgery.
C, fMRI images activated by left hand clenching (orange) and right hand clenching (blue) after surgery. A relatively small area of the ipsilateral (B-3) and contralateral (B-2) M1 was activated by left hand clenching before surgery. A large portion of the right premotor and M1 were activated by left hand clenching after surgery (C-4, orange). The anterior temporal area was activated by left hand clenching before surgery (B-1) and by right or left hand clenching after surgery (C-1). The right medial M1 was activated by right or left hand clenching (C-3).
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