title: Computed tomography and magnetic resonance imaging findings of intrasellar schwannoma: A case report and literature review.
abstract: Intrasellar schwannoma is extremely rare, and only a few cases have been reported in the literature to date. In the present study, the clinical, radiological and pathological features of a 50-year-old male patient with primary intrasellar schwannoma are presented. The patient presented with decreased visual acuity, and a subsequent computed tomography (CT) scan revealed a giant well-demarcated intrasellar mass with suprasellar extension, without cavernous sinus invasion. The lesion was slightly hyperdense with heterogeneous enhancement. On magnetic resonance imaging (MRI), the mass was isointense on T1 weighted images (WI), and slightly hyperintense on T2WI, with significant heterogeneous enhancement. Previous literature was reviewed to summarize the CT and MRI characteristics of intrasellar schwannoma. Despite the rarity of this tumor, intrasellar schwannoma must be included in the differential diagnosis of intrasellar lesions.
authors.affiliation: Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China.
authors.forename: Mengqi
authors.initials: M
authors.lastname: Liu
authors.affiliation: Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China.
authors.forename: Y U
authors.initials: YU
authors.lastname: Ouyang
authors.affiliation: Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China.
authors.forename: Fajin
authors.initials: F
authors.lastname: Lv
keywords: magnetic resonance imaging; schwannoma; sella tunica