Sagittal T1-WI demonstrates a heterogeneously hyperintense left frontal lobe mass.
A T2-WI with fat saturation demonstrates the lesion to follow fat signal intensity.
Note the characteristic chemical shift artifact in the anterior margin of the lesion on the
axial FLAIR sequence. Also note the droplets of hyperintensity in the subarachnoid
space near the anterior interhemispheric fissure.
Sagittal T1-WI again demonstrates multiple foci of T1 shortening present within the
subarachnoid space. Diffusion imaging shows no susceptibility artifact that might be
encountered with blood products. Of note, there is no restricted diffusion.
Coronal T1-WI better demonstrate the fat signal of the lesion with the associated
subarachnoid spread. Again note the chemical shift artifact.
Fat saturation confirms the nature of the lesion. Some capsular enhancement is seen.
Key words: mri tumor neoplasia
Ruptured dermoid cyst