Subdural XXXX of @entity263 .

@entity1 @entity3439 @entity263 @entity5 @entity425 @entity911 @entity3 @entity10
Dural @entity3 from @entity263 is rare and may mimic a @entity3439 ( @entity3439 ). Preoperatively diagnosis may be difficult and only reveal its presence during surgery. We present such a case and review the literature to identify common characteristics. A 65-year-old @entity1 presented with @entity10 , @entity911 , and progressive @entity425 . Past history included a @entity263 with bone @entity3 3 years earlier. Head computed tomography (CT) scan without contrast revealed a multinodular bilateral hyperdense extra-axial lesion interpreted as acute @entity3439 . At surgery planned for @entity3439 drainage no blood was found; instead there was an en plaque subdural @entity5 . Histopathologic examination was consistent with metastatic @entity263 . We found 11 cases reported as dural @entity3 of @entity263 mimicking @entity3439 . Surgery was performed on nine cases with no suspicion of dural @entity3 . On preoperative nonenhanced CT scan images, three types of image patterns can be described: a nodule in @entity3439 , multinodular @entity3 surrounded by @entity3439 , and large en plaque subdural @entity5 . The latter group consists of those cases where no blood but rather an en plaque subdural @entity5 was found at surgery. Even though rare, dural @entity3 should be considered among the differential diagnoses in a @entity1 known for @entity263 .
