title: Huge colloid cyst: case report and review of unusual forms.
abstract: The authors report a case of a huge colloid cyst of the septum pellucidum with acute worsening. A 42-year-old man was admitted for unexplained lethargy. A brain CT scan disclosed a huge intra-ventricular lesion. He experienced a sudden deterioration with coma, and was managed with bilateral ventricular external shunting. Total removal was performed a few days later using a right frontal trans-ventricular approach. The discussion focuses on colloid cyst potential to mimic other intracranial lesions, rendering accurate diagnosis difficult and leading to possibly inappropriate management in similar cases.
authors.affiliation: Department of Neurosurgery, CHRU Pontchaillou, Rennes, France. hamlat.abd@wanadoo.fr
authors.forename: A
authors.initials: A
authors.lastname: Hamlat
authors.forename: C
authors.initials: C
authors.lastname: Casallo-Quiliano
authors.forename: S
authors.initials: S
authors.lastname: Saikali
authors.forename: M
authors.initials: M
authors.lastname: Adn
authors.forename: G
authors.initials: G
authors.lastname: Brassier
mesh_terms: D000328:Adult; D001927:Brain Diseases / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D003128:Coma / Q000209:etiology; D003560:Cysts / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D019635:Neurosurgical Procedures / Q000379:methods*; D012688:Septum Pellucidum / Q000473:pathology* / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome