Li L, Begbie F, Grimmond N, Kontorinis G
Department of Otorhinolaryngology, Queen Elizabeth University Hospital, Glasgow, Scotland, UK.
J Laryngol Otol. 2020 May;134(5):424-430. doi: 10.1017/S0022215120000808. Epub 2020 Apr 17.
To determine the clinical significance of arachnoid cysts.
The scans of 6978 patients undergoing magnetic resonance imaging of the internal acoustic meatus for unilateral cochleovestibular symptoms were retrospectively reviewed. We identified the scans with arachnoid cysts, and assessed the statistical associations between the laterality, location and size of the arachnoid cyst, the laterality of symptoms, the patients' age and gender.
In a total of 37 arachnoid cysts identified in 36 patients (0.5 per cent), no associations were identified between the laterality of symptoms and the laterality of the arachnoid cyst, regardless of its size or location. There were no significant associations between the location of the arachnoid cyst and the age (p = 0.99) or gender of the patient (p = 0.13), or size (p = 0.656) or side of the cyst (p = 0.61). None of the cysts with repeat imaging scans (17 cysts) demonstrated growth.
Our results suggest that most, if not all, arachnoid cysts are of no clinical significance. Given their indolent behaviour, even serial imaging is not essential.
确定蛛网膜囊肿的临床意义。
回顾性分析6978例因单侧耳蜗前庭症状接受内耳道磁共振成像检查患者的扫描结果。我们识别出有蛛网膜囊肿的扫描图像，并评估蛛网膜囊肿的侧别、位置和大小、症状的侧别、患者年龄和性别之间的统计学关联。
在36例患者（占0.5%）中共识别出37个蛛网膜囊肿，无论囊肿大小或位置如何，症状的侧别与蛛网膜囊肿的侧别之间均未发现关联。蛛网膜囊肿的位置与患者年龄（p = 0.99）、性别（p = 0.13）、囊肿大小（p = 0.656）或囊肿侧别（p = 0.61）之间均无显著关联。在接受重复成像扫描的囊肿中（17个囊肿），无一例显示生长。
我们的结果表明，大多数（如果不是全部）蛛网膜囊肿无临床意义。鉴于其惰性表现，即使进行系列成像检查也并非必要。
