Abouzeid Hana, Dehdashti Amir R, de Tribolet Nicolas
Department of Neurosurgery, Geneva University Hospital, Switzerland.
J Clin Neurosci. 2003 Sep;10(5):620-1. doi: 10.1016/s0967-5868(03)00141-3.
Colloid cyst of the third ventricle is a rare, benign pathology of endothelial origin. Excellent prognosis is achieved when the cyst is diagnosed early and excised. Hydrocephalus can occur as an acute, fatal complication or can cause chronic symptoms such as headaches. A case of a patient with a third ventricle colloid cyst in association with prepontine subarachnoid haemorrhage is presented. This was a 29-year-old healthy male who was admitted because of a depressed consciousness. Neuro-radiological imaging revealed a mass in the third ventricle, a biventricular hydrocephalus and a prepontine subarachnoid haemorrhage without any evidence of a cerebral aneurysm. Perimesencephalic nonaneurysmal subarachnoid haemorrhage is well known but its cause is still a matter of debate. A description is given of the association of this type of subarachnoid haemorrhage with an acute hydrocephalus caused by a third ventricle colloid cyst. Because of the potential morbidity and mortality of third ventricle colloid cysts, this association is described and should be considered as a rare presentation of third ventricle colloid cyst.
第三脑室胶样囊肿是一种罕见的、起源于内皮的良性病变。囊肿早期诊断并切除可获得良好预后。脑积水可作为一种急性致命并发症出现，也可引起如头痛等慢性症状。本文报告一例第三脑室胶样囊肿合并脑桥前蛛网膜下腔出血的患者。患者为29岁健康男性，因意识障碍入院。神经放射影像学检查显示第三脑室内有一肿块、双侧脑室积水以及脑桥前蛛网膜下腔出血，未发现任何脑动脉瘤迹象。中脑周围非动脉瘤性蛛网膜下腔出血虽广为人知，但其病因仍存在争议。本文描述了这种类型的蛛网膜下腔出血与第三脑室胶样囊肿所致急性脑积水之间的关联。鉴于第三脑室胶样囊肿潜在的发病率和死亡率，这种关联被予以描述，应被视为第三脑室胶样囊肿的一种罕见表现。
