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Glioma - Low Grade - Case 4

A 33 year-old man developed headaches and a depressed affect.

Outline the Tumor          Show the Gyral Anatomy

MRI Flair scans: (Left) Coronal; (Right) Sagitall.  Note the lesion in the left frontal lobe anterior to the precentral gyrus in the superior frontal gyrus. There is no obvious mass effect. On gadolinium scans, this lesion did not enhance. Also, note that there is very little mass effect. This is a low grade glioma. Low-grade astrocytomas make up 15% of all primary intracranial brain tumors, and usually occur in young adults. Although biopsy is required to make a definitive diagnosis, the lack of contrast enhancement favors the diagnosis of a low grade glioma rather than a glioblastoma.

Revised 05/09/06.
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