authors, Jennifer Mayne MD
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Clinical History:
42 year old man presented with seizures.
Diagnosis:
Oligodendroglioma
MR Technique:
3T (Siemens Verio) using head coil. Image 1: Axial T2 turbo spin echo (TR/TE 6000/96 ms, slice thickness 4 mm, scan time 1 min 26 sec); Image 2: Axial T2 FLAIR (TR/TE 9000/133 ms, TI 2500, slice thickness 4 mm, scan time 4 min 32 sec); Image 3: Axial T1 (TR/TE 250/2.5 ms, slice thickness 4 mm, scan time 2 min 10 sec); Image 4: T1 after injection of 0.1 mmol/kg of gadolinium chelate (TR/TE 250/2.5 ms, slice thickness 4 mm, scan time 2 min 10 sec).
Imaging Findings:
Increased T2 and FLAIR signal is noted in the left temporal lobe anteriorly with ill-defined margins involving the grey and white matter. Isointense signal is noted in this region on the T1 precontrast images. Minimal enhancement is present on the T1 postcontrast images.
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