title: Unusual dural and skull-based mesenchymal neoplasms: a report of four cases.
abstract: Dural and skull-base mesenchymal neoplasms other than meningiomas are rare. We report four such tumors, some of which are uncommon even in nonintracranial sites, in three adults and one child. The adult tumors consisted of a synovial sarcoma of the third ventricle region in a 19-year-old woman, a leiomyoma of the suprasellar region in a 57-year-old woman, and an Epstein-Barr virus (EBV)-associated smooth muscle tumor of the cavernous sinus in a 35-year-old woman with acquired immunodeficiency syndrome (AIDS). The pediatric tumor was an EBV-associated leiomyosarcoma of the left dural transverse sinus in a 14-year-old girl with common variable immunodeficiency syndrome. All tumors were thought to be primary in their dural or skull-base locations. The two EBV-associated smooth muscle tumors in immunocompromised patients expand the locations for EBV-associated smooth muscle tumors to dural and skull-base sites, the synovial sarcoma is unique to the intracranial space, and the sellar leiomyoma represents the third reported sellar smooth muscle tumor.
authors.affiliation: Department of Pathology, University of Colorado Health Sciences Center, Denver 80262, USA.
authors.forename: B K
authors.initials: BK
authors.lastname: Kleinschmidt-DeMasters
authors.forename: G W
authors.initials: GW
authors.lastname: Mierau
authors.forename: C I
authors.initials: CI
authors.lastname: Sze
authors.forename: R E
authors.initials: RE
authors.lastname: Breeze
authors.forename: B
authors.initials: B
authors.lastname: Greffe
authors.forename: K O
authors.initials: KO
authors.lastname: Lillehei
authors.forename: J K
authors.initials: JK
authors.lastname: Stephens
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000150:complications; D000293:Adolescent; D000328:Adult; D001932:Brain Neoplasms / Q000473:pathology*; D017809:Fatal Outcome; D005260:Female; D006566:Herpesviridae Infections / Q000473:pathology; D004854:Herpesvirus 4, Human / Q000472:pathogenicity; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications; D007889:Leiomyoma / Q000473:pathology*; D007890:Leiomyosarcoma / Q000473:pathology* / Q000821:virology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D012367:RNA, Viral / Q000032:analysis; D013584:Sarcoma, Synovial / Q000473:pathology*; D012658:Sella Turcica / Q000473:pathology; D012888:Skull Neoplasms / Q000473:pathology*; D018235:Smooth Muscle Tumor / Q000473:pathology* / Q000821:virology; D014412:Tumor Virus Infections / Q000473:pathology
chemical_list: D012367:RNA, Viral