本文關(guān)鍵詞：淚囊區(qū)原發(fā)惡性腫瘤的MRI表現(xiàn)及臨床病理分析　出處：《眼科》2015年05期 　論文類型：期刊論文

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【摘要】：目的探討眼眶淚囊區(qū)不同惡性腫瘤的MRI表現(xiàn)與臨床病理的關(guān)系。設(shè)計(jì)回顧性病例系列。研究對象北京同仁醫(yī)院2005-2014年13例經(jīng)病理證實(shí)為淚囊區(qū)惡性腫瘤患者的MRI表現(xiàn)及臨床資料。方法所有患者均行眼眶MRI平掃及增強(qiáng)檢查,其中10例行動(dòng)態(tài)增強(qiáng)掃描,根據(jù)時(shí)間-信號強(qiáng)度曲線(TIC)分為三種類型(Ⅰ型穩(wěn)定增強(qiáng)型,Ⅱ型平臺型,Ⅲ型流出型)。11例手術(shù)切除,2例活檢。主要指標(biāo)MRI表現(xiàn),強(qiáng)化程度,TIC類型及病變的累及范圍。結(jié)果病變主體均位于淚囊窩內(nèi)。病理結(jié)果顯示淋巴瘤5例、惡性黑色素瘤2例,瞼板腺癌、基底細(xì)胞癌、基底樣鱗狀細(xì)胞癌、腺樣囊性癌、低分化腺癌、皮脂腺癌各1例。MRI表現(xiàn):淋巴瘤T1WI、T2WI均呈等信號,增強(qiáng)掃描輕度均勻強(qiáng)化。惡性黑色素瘤T1WI呈高信號、T2WI呈低信號,增強(qiáng)掃描輕中度均勻強(qiáng)化。瞼板腺癌及低分化腺癌T1WI、T2WI均呈等信號。另4例T1WI呈等信號,T2WI呈略長信號,增強(qiáng)掃描呈輕中度強(qiáng)化。TIC:Ⅰ型、Ⅱ型各2例,Ⅲ型6例。12例病變累及鼻淚管,9例累及鄰近皮膚,7例累及眼瞼,2例累及眼眶肌錐內(nèi)間隙。結(jié)論淚囊惡性腫瘤因病理類型不同MRI表現(xiàn)不同,常累及鄰近結(jié)構(gòu),MRI可準(zhǔn)確顯示腫瘤累及范圍。TIC三型均有,以流出型為主。
[Abstract]:Objective to investigate the relationship between MRI and clinicopathological manifestations of different malignant orbital tumors of the lacrimal sac area. Design Retrospective case series study. Beijing Tongren Hospital, 13 cases of 2005-2014 confirmed by pathology MRI findings and clinical data of patients with malignant tumor of lacrimal sac area. Methods all patients underwent orbital MRI scan and enhancement scan, 10 cases dynamic enhanced scanning, according to the time signal intensity curve (TIC) is divided into three types (type I enhanced stability, type II platform, type III outflow type) resection.11 cases, biopsy in 2 cases. The main performance indexes of MRI, strengthen the degree of TIC type and range of lesions. The main lesions are located in the lacrimal fossa. The pathological results showed 5 cases of lymphoma, 2 cases of malignant melanoma, meibomian gland carcinoma, basal cell carcinoma and basaloid squamous cell carcinoma, adenoid cystic carcinoma, poorly differentiated adenocarcinoma, sebaceous gland carcinoma in 1 cases:.MRI lymphoma T1W I, T2WI showed signal enhancement, mild homogeneous enhancement. Malignant melanoma showed high signal in T1WI, T2WI showed low signal enhancement, mild to moderate homogeneous enhancement. The meibomian gland carcinoma and poorly differentiated adenocarcinoma were T1WI, T2WI and other signals. The other 4 cases showed T1WI signal, T2WI showed slightly long signal, enhanced scan showed mild to moderate enhancement of.TIC: type I, type II in 2 cases, 6 cases of.12 patients with type III lesions involving the nasolacrimal duct, 9 cases involving the adjacent skin, 7 cases of eyelid involvement, 2 cases involving the orbital muscle cone clearance. Conclusion lacrimal malignant tumor with different pathological types of MRI were different, often involving the adjacent structure, MRI can accurately display the range of tumors were.TIC three, to the outflow type.

【作者單位】： 首都醫(yī)科大學(xué)附屬北京同仁醫(yī)院影像中心;
【分類號】：R739.7;R445.2
【正文快照】： 淚囊區(qū)腫瘤發(fā)生率極低,約占頭頸部腫瘤的0.2%信號強(qiáng)度迅速增加,之后對比劑流出,信號強(qiáng)度減~2%[1]。國內(nèi)有關(guān)本病MRI表現(xiàn)的研究報(bào)道較少,現(xiàn)小。分析其MRI表現(xiàn)及臨床病理,探討影像學(xué)診斷要結(jié)果點(diǎn),提高診斷準(zhǔn)確性。一、病理類型資料與方法病變主體均位于淚囊窩內(nèi)。病理結(jié)果顯示淋，

本文編號：1429537