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.

Endoscopic Endonasal Resection of a Cavernous Malformation of the Third Ventricle: Case Report and Literature Review

“…38 Other expected complications following surgical resection of third ventricular CM using various techniques include adrenal insufficiency, memory deficits, and intraventricular hemorrhage. 24,33,[39][40][41][42][43][44][45] Although the risk of venous thromboembolism (VTE) is low in patients undergoing endoscopic endonasal procedures (0.77%), 46 our patient experienced pulmonary embolism 4 days postoperatively despite being on an appropriate dose of a prophylactic anticoagulant. This is explained by the presence of risk factors for VTE, such as obesity and smoking.…”

Endoscopic management of a cavernous malformation on the floor of third ventricle and aqueduct of Sylvius: Technical case report and review of the literature

“…In the last years, ten new IVC cases have been published, giving a cumulative total of 101 cases. [ 8 14 20 30 32 33 36 37 38 51 ] Thirty-six percent (36/101) of the reported cases had their location in the TV. Of the 101 IVC cases, 3 were successfully treated using purely endoscopic means.…”