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Cystic Meningioma Simulating Arachnoid Cyst: Report of an Unusual Case

2014; Hindawi Publishing Corporation; Volume: 2014; Linguagem: Inglês

10.1155/2014/371969

2090-6862

Jorge Docampo, Gonzalez Nadia, Vazquez Claudio, Morales Carlos, Eduardo Gonzalez‐Toledo,

Spinal Dysraphism and Malformations

The purpose of this paper is to show an unusual case of meningioma simulating arachnoid cyst on CT scan and MRI, diagnosed in a 63-year-old woman evaluated for headache and vision disorders. The meningioma shown is predominantly cystic with a small mural nodule enhancing after gadolinium and exhibiting diffusion restriction. Cystic portion of the tumor is hypodense on CT, and evidences fluid signal intensity on T1- and T2-weighted MR imaging.