2012-10-29 MRI Report

MRI BRAIN WITH AND WITHOUT CONTRAST, Oct 29, 2012 11:23:00 AM

COMPARISON: 8/29/2012

Additional history: Left frontal lobe glioblastoma multiform diagnosed 3/2012 status post concurrent chemoradiation therapy completed 6/6/2012. Currently on cycle 4 of temozolomide.

TECHNIQUE: Multiplanar, multi-sequence MR imaging of the entire brain was performed before and after intravenous administration of gadolinium-based contrast.

FINDINGS:
Calvarium/skull base: Postsurgical changes of left frontal craniotomy for resection of a GBM.

Orbits: Grossly unremarkable.

Paranasal sinuses: Heterogeneous, predominantly T2 hyperintense, rounded lesion in the left maxillary sinus which likely represents a polyp or retention cyst.

Brain: Postsurgical changes of a left frontal craniotomy for resection of a GBM are redemonstrated. Susceptibility artifact in the resection cavity along the medial aspect of the left frontal lobe, which appears similar to prior, and is compatible with remote blood products. No significant interval change in T2/FLAIR signal abnormality along the margins of the resection cavity. Persistent dural enhancement subjacent to the craniotomy. Re-demonstration of enhancement along the tumor resection cavity which is not significantly changed since 8/29/2012. No new areas of enhancement or abnormal T2/FLAIR signal.  Grossly normal flow-related signal in the major intracranial arteries and dural sinuses.

CONCLUSION:
Postsurgical changes of left frontal craniotomy for resection of a GBM. No new nodular enhancement or increased T2/FLAIR signal to suggest disease progression

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