Abstract:Vestibular schwannomas(VS)are the third most common benign intracranial tumors with slow growth rate and expansive growth,and their tumor size,nature,and degreeof neurovascular adhesionare closely related to the prognosis of postoperative facial nerve function.In thispaper,we explore thecorrelation betweendiffrent inflammatorymarkersandVSwithrespect tothebiologicalcharacteristicsofVS,andreviewthelatestresearch progress inthis field.How todiagnoseVS early bymeansof economical and practicalseruminflammatory markers is lessreported inforeign literature,andthereisnorelevantstudyin Chinayet.Itisofclinical significanceto explore how to predict tumor growthand peritumor adhesion byusing simpler serum inflammatory markers,so as to guidethe clinical developmentof appropriate treatment strategiesand improvetheoverall prognosisof patients.Moreover, serum inflammatory markers such asNLR,SII,PIVandLMR have been proved to playan important role in the prognostic assssment of various malignant tumors,which mayprovide new ideas for the diagnosis,prognosis and outcome prediction of VS.
Key words:vestibular schwannoma;inflammatory markers;diagnostic;tumour microenvironment;prognosis
前庭神經鞘瘤(vestibularschwannoma,VS)亦稱聽神經瘤,是顱內常見的良性腫瘤之一,其發病率僅次于腦膜瘤和垂體瘤,占腦橋小腦角區腫瘤的 80% 以上[1]。該腫瘤起源于第V對顱神經(前庭-耳蝸神經)鞘膜的施旺細胞,以呈膨脹性生長為主,部分病例可伴有囊性變。VS的生長、大小、性質、神經血管粘連程度對術后神經功能影響密切相關,常使得大中型VS術后面臨著不同程度的神經功能損傷,其中面神經功能的保護仍是該領域的研究熱點[2]。近年來,隨著腫瘤微環境(tumormicroenvironment,TME)研究的深人,炎癥標志物在VS發生發展中的作用機制日益受到學界關注3,本文旨在系統綜述VS與炎癥標志物相關性的最新研究進展,以期為VS的診療提供新的理論思路。
1VS的流行病學和病理學特征
1.1流行病學VS發病率約為 3.0/100 000~5.2/100 000 (人/年),呈現出明顯的年齡相關性,其中70歲以上人群的發病率顯著升高,可達 20.6/100000 (人/年),約占所有顱內腫瘤的 8% [4]。VS通常表現為緩慢生長的生物學特性,年均生長速率約2mm[5]。1.2病理學特征VS組織學上可分為AntoniA型、B型及AB型三種亞型[6],Antoni A型以密集排列的梭形細胞為特征,細胞核扭曲、胞質邊界不清,呈柵欄狀或旋渦狀排列,可見特征性Verocay小體;AntoniB型則表現為疏松排列的神經膜細胞,常伴有泡沫狀巨噬細胞浸潤及退行性改變;AntoniAB型兼具上述兩種病理特征。而VS微環境中普遍存在炎癥反應,主要表現為M2型巨噬細胞和淋巴細胞浸潤,其中AntoniB型的免疫細胞浸潤程度更為顯著[7]]
2VS的臨床表現及治療策略
2.1臨床表現VS的早期癥狀多較隱匿,部分患者可表現為非特異性頭暈,典型癥狀以單側感音神經性耳聾( 95% )和耳鳴( 63% )最為常見[8]。……