Patient with chronic headache that does not improve with treatment. Receives migraine treatment.
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Fluid density extra-axial cyst-like lesion is seen at left middle cranial fossa with remodeling of the adjacent bone (greater wing of sphenoid). Also, produces a mild mass effect over the temporal lobe.
The Galassi classiﬁcation is used to classify middle fossa cysts into three types 1.
Type I cysts are typically asymptomatic.
Type II cysts extend superiorly along the Sylvian ﬁssure, occasionally displacing the temporal lobe.
Type III cysts are very large, displacing not only the temporal lobe but also disrupting the parietal and frontal lobes.