Presentation
Severe headache
Patient Data
Age: 20 years
Gender: Male
From the case:
Intracranial dermoid cyst
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Left middle cranial fossa cystic lesion with high signal on T1 and T2, thin regular marginal enhancement and complete suppression on T1 fat sat post-contrast sequence.
High T1 foci along brain sulci (subarachnoid space) notably along adjacent left Sylvian fissure, consistent with rupture.
Mild communicating hydrocephalus is also noted.
From the case:
Intracranial dermoid cyst
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Large left middle cranial fossa hypodense cystic lesion with smooth margins and linear calcifications. Minute hypodense foci are seen along subarachnoid spaces (sulci) of both cerebral hemispheres, consistent with rupture.
Mild communicating hydrocephalus is noted.
Case Discussion
Features are consistent with ruptured intracranial dermoid cyst.
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