Presentation
Progressive painless swelling of the occipital region
Patient Data
Age: 75 years
Gender: Female
From the case:
Intradiploic epidermoid cyst
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There is an intradiploic expansile osteolytic lesion of the occipital bone, hypodense with no enhancement, containing foci of calcification with expansion and erosion of the inner and outer tables of the skull.
Case Discussion
CT features are in keeping with an intradiploic epidermoid cyst.
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