title: A large cavernous malformation of the third ventricle floor: A case report.
abstract: Suprasellar and third ventricular region cavernous malformations originating from the floor of the third ventricle are extremely rare. We report a case of third ventricular cavernous malformation arising from the ventricle floor in a 24-year-old woman who presented with short-term memory loss and disorientation. Computed tomography revealed a suprasellar mass with calcification in the posterior chiasmatic region. T2-weighted magnetic resonance imaging revealed a mass with heterogeneous intensity and without hydrocephalus. The mass was slightly enhanced subsequent to gadolinium infusion. Using a basal interhemispheric translamina terminalis approach and a neuroendoscope, we confirmed that the tumor was located at the floor of the third ventricle and removed it. Histopathological examination confirmed the diagnosis of cavernous malformation. The postoperative course was uneventful, but the patient's short-term memory loss persisted. Despite its rarity, cavernous malformation should be suspected when a tumor is detected in the vicinity of the third ventricle floor. It is treatable through surgical resection.
authors.affiliation: Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan. Electronic address: hn0628hn@med.kobe-u.ac.jp.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nagashima
authors.affiliation: Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Tanaka
authors.affiliation: Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Sasayama
authors.affiliation: Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Okamura
authors.affiliation: Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Masaaki
authors.initials: M
authors.lastname: Taniguchi
authors.affiliation: Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Kyoko
authors.initials: K
authors.lastname: Otani
authors.affiliation: Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamasaki
authors.affiliation: Department of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Tomoo
authors.initials: T
authors.lastname: Itoh
authors.affiliation: Department of Neurosurgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Kohmura
mesh_terms: D000328:Adult; D005260:Female; D020786:Hemangioma, Cavernous, Central Nervous System / Q000150:complications / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008569:Memory Disorders / Q000209:etiology; D008570:Memory, Short-Term; D044583:Neuroendoscopy; D011859:Radiography; D012658:Sella Turcica / Q000000981:diagnostic imaging / Q000473:pathology; D020542:Third Ventricle / Q000000981:diagnostic imaging / Q000473:pathology*; D055815:Young Adult
keywords: Cavernous malformation; Suprasellar tumor; Third ventricle floor; Translamina terminalis approach