泪囊区原发恶性肿瘤的MRI表现及临床病理分析

发布时间：2018-01-15 18:25

  本文关键词：泪囊区原发恶性肿瘤的MRI表现及临床病理分析　出处：《眼科》2015年05期 　论文类型：期刊论文

  更多相关文章： 泪囊 恶性肿瘤 磁共振成像

【摘要】：目的探讨眼眶泪囊区不同恶性肿瘤的MRI表现与临床病理的关系。设计回顾性病例系列。研究对象北京同仁医院2005-2014年13例经病理证实为泪囊区恶性肿瘤患者的MRI表现及临床资料。方法所有患者均行眼眶MRI平扫及增强检查,其中10例行动态增强扫描,根据时间-信号强度曲线(TIC)分为三种类型(Ⅰ型稳定增强型,Ⅱ型平台型,Ⅲ型流出型)。11例手术切除,2例活检。主要指标MRI表现,强化程度,TIC类型及病变的累及范围。结果病变主体均位于泪囊窝内。病理结果显示淋巴瘤5例、恶性黑色素瘤2例,睑板腺癌、基底细胞癌、基底样鳞状细胞癌、腺样囊性癌、低分化腺癌、皮脂腺癌各1例。MRI表现:淋巴瘤T1WI、T2WI均呈等信号,增强扫描轻度均匀强化。恶性黑色素瘤T1WI呈高信号、T2WI呈低信号,增强扫描轻中度均匀强化。睑板腺癌及低分化腺癌T1WI、T2WI均呈等信号。另4例T1WI呈等信号,T2WI呈略长信号,增强扫描呈轻中度强化。TIC:Ⅰ型、Ⅱ型各2例,Ⅲ型6例。12例病变累及鼻泪管,9例累及邻近皮肤,7例累及眼睑,2例累及眼眶肌锥内间隙。结论泪囊恶性肿瘤因病理类型不同MRI表现不同,常累及邻近结构,MRI可准确显示肿瘤累及范围。TIC三型均有,以流出型为主。
[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.

【作者单位】： 首都医科大学附属北京同仁医院影像中心;
【分类号】：R739.7;R445.2
【正文快照】： 泪囊区肿瘤发生率极低,约占头颈部肿瘤的0.2%信号强度迅速增加,之后对比剂流出,信号强度减~2%[1]。国内有关本病MRI表现的研究报道较少,现小。分析其MRI表现及临床病理,探讨影像学诊断要结果点,提高诊断准确性。一、病理类型资料与方法病变主体均位于泪囊窝内。病理结果显示淋，

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