Frontotemporal giant extradural dermoid cyst: illustrative case.

Dan Cao, Houyun Xu, Jibo Hu, Jun Mo, Xiping Yu, Junli Wang,Hongjie Hu

Journal of neurosurgery. Case lessons（2023）

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摘要

Extradural dermoid cyst with a mural nodule is extremely rare. When a hypodense lesion on CT shows mixed signal on T1- and T2-weighted imaging with a mural nodule, even if it is located in the extradural areas, it is important to consider a dermoid cyst. Serum CA19-9 combined with atypical imaging features may contribute to the diagnosis of dermoid cysts. Only recognition of atypical radiological features can avoid misdiagnosis.

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关键词

CA19-9,extradural dermoid cyst,giant cell reactivity,mural nodule

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