共查询到19条相似文献,搜索用时 156 毫秒
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目的 分析肌内黏液瘤影像学表现。方法 回顾性分析经手术、病理证实的11例肌内黏液瘤患者的临床、病理及影像检查资料。结果 病变位于下肢7例,颈部2例,臀部1例,上肢1例。CT扫描3例,平扫表现为边界清楚的低密度肿块,增强扫描病灶不均匀轻度强化。MR扫描8例,7例呈均匀长T1长T2信号,DWI呈较均匀高信号,3例出现"周围脂肪带"征和周围肌肉内水肿,其中3例行MR增强扫描,均呈明显不均匀渐进性强化。3例患者同时接受彩超检查,显示为肌内囊实性团块,形态规则,2例可探及少量血流信号。结论 综合分析肌内黏液瘤的影像学表现,特别是MR表现有助于本病的术前诊断。 相似文献
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目的 探讨头颈部炎性肌纤维母细胞瘤(IMT)的CT和MRI表现。方法 回顾性分析12例经手术病理证实的头颈部IMT患者的临床及影像学资料,9例接受CT平扫,其中7例接受增强CT扫描;4例接受MR平扫及增强扫描。结果 12例IMT均为单发,发生于上颌骨、颌面部软组织、上颌窦及颈部软组织各2例,下颌骨、眼眶、颧骨及腮腺各1例,肿瘤体积1.0 cm×1.0 cm×1.0 cm~5.0 cm×3.8 cm×4.8 cm。CT平扫7例密度均匀,2例密度不均匀,CT值30~85 HU,增强扫描6例轻至中度强化,1例明显强化;6例可见骨质被吸收破坏,呈压迫性或膨胀性溶骨改变,周围无硬化边和骨膜反应。MRI示软组织肿块,边界不清,T1WI呈等略低信号,T2WI呈等略高信号;增强后3例明显均匀强化,1例不均匀强化。结论 CT和MRI可清晰显示IMT部位、大小及周围改变,但无特异性,确诊需依赖病理检查。 相似文献
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目的 分析肝脏炎性肌纤维母细胞瘤的影像学特点并分型。方法 收集本院病理证实为肝脏炎性肌纤维母细胞瘤的患者22例,分析其影像学特点,并对其进行分型。结果 22例患者共发现23个病灶。肝脏炎性肌纤维母细胞瘤的典型影像特点包括晚期高强化(13/20)、中心坏死(12/23)及边缘包壳(12/23)。有核果型为最典型的形态学分型(8/23),其次为无核果型(7/23)。结论 肝脏炎性肌纤维母细胞瘤多为单发结节样病变,病灶中心可见"虫蛀隧道"样坏死、边缘可见包壳、形似"有核果"为典型表现,晚期强化及边缘强化为其特征性表现。 相似文献
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目的 探讨多层螺旋CT增强扫描在口底恶性肿瘤诊断中的价值。方法 对27例经临床及手术病理证实的口底恶性肿瘤患者行多层螺旋CT增强扫描,并行冠状面、矢状面MPR,多方位、多窗位观察分析病变。结果 27例口底恶性肿瘤表现为不规则软组织肿块,呈均匀或不均匀强化,境界不清,其中6例伴邻近骨质破坏,周围结构受累,10例伴颈部淋巴结增大。 结论 多层螺旋CT增强扫描结合MPR技术可清楚显示口底恶性肿瘤的大小、形态和累及范围。 相似文献
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目的:探讨肺炎性肌纤维母细胞瘤的CT表现,提高对该病的认识。材料与方法:收集本院2009年10月至2011年10月经病理确诊的8例肺原发性肌纤维母细胞瘤,回顾性分析患者术前的肺部CT表现。结果:8例肺炎性肌纤维母细胞瘤中,2例(2/8)位于近肺门区,6例(6/8)位于肺周边部;1例(1/8)增强扫描呈轻度强化,7(7/8)呈明显强化,5例(5/8)强化均匀;6例(6/8)边缘较清晰,1例(1/8)发生远处转移。结论:肺炎性肌纤维母细胞瘤虽然有较典型的CT表现,较易诊断,但必须对其转移的可能性提高警惕。 相似文献
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Sebastian L Obrzut Benjamin S Halpern Travis Monchamp Karsten Grabski William J Watts Johannes Czernin 《Molecular imaging and biology》2004,6(3):126-130
PURPOSE: To compare the pre and post treatment 2-deoxy-2-[(18)F]fluoro-D-glucose (FDG)-positron emission tomography (PET)/computed tomography (CT) imaging findings of an inflammatory myofibroblastic tumor (IMT) with its clinical response to immunosuppressive therapy. PROCEDURE: Forty-nine-year-old female presented with dyspnea, chest pain, and weight loss and underwent an FDG-PET/CT scan before and after mediastinal biopsy and treatment with dexamethasone and thalidomide. RESULTS: FDG-PET/CT scan demonstrated a hypermetabolic mediastinal mass. The biopsy of the lesion was consistent with IMT. Following immunosuppressive therapy, the patient's clinical findings resolved, and PET/CT showed a significant decrease in the FDG uptake and the size of the mass. CONCLUSION: Pre-treatment imaging features and post-treatment imaging characteristics of IMT correlate with clinical findings and suggest that FDG-PET/CT may be useful as an adjunct to clinical evaluation in monitoring of immunosuppressive therapy of IMT. 相似文献
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炎性肌纤维母细胞瘤的影像学特征 总被引:2,自引:0,他引:2
目的 探讨炎性肌纤维母细胞瘤(IMT)的影像学特征.方法 回顾性分析7例经手术病理证实的IMT(软组织6例,右肾1例)患者的影像学资料,其中2例接受CT检查,5例接受MR检查.结果 纵隔IMT呈条状分布,边界不清,平扫CT呈低密度,增强扫描轻度强化;腹膜后IMT平扫CT呈等密度,中心有囊变坏死区,增强扫描肿瘤实性部分明显强化.4例软组织IMT在T1WI上2例呈等信号,1例呈稍低信号,1例呈稍高信号;T2WI上2例呈稍高信号,1例呈低信号,1例呈不均匀等信号;增强扫描均较明显强化;其中3例合并黏液变或囊变坏死区,1例合并低信号分隔样结构.右肾IMT呈囊实性,囊性部分呈T1WI稍高信号、T2WI高信号,实性部分呈T1WI等信号、T2WI稍低信号,增强扫描实性部分及囊壁明显强化.结论 IMT是一种少见的肿瘤,其临床和影像学表现缺乏特异性,术前定性诊断较难,在临床工作中若涉及到各部位肿瘤的诊断和鉴别诊断,应考虑到本病的可能. 相似文献
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目的总结腹盆部炎性肌纤维母细胞瘤(IMT)的影像征象,并与病理相对照,以期提高该病的术前诊断准确率。材料与方法回顾性分析经手术病理证实的8例腹盆部IMT,其中男5例,女3例,年龄38~78岁,平均年龄54岁。临床表现为腹部疼痛或肝区痛3例,无明显诱因消瘦2例,体检发现3例。术前7例行CT检查,3例同时行MRI检查。复习影像征象并与病理对照。结果肝脏5例,膀胱1例,肠系膜1例,肾脏1例,其中3例边界清晰,5例边界模糊;病灶大小不一,最大横径12~140 mm。CT平扫呈不均匀等低密度,MRI实性部分T1WI呈稍低信号,T2WI呈稍高信号,中心可见不规则坏死区,增强扫描强化方式各异:4例呈环形强化,3例呈轻度边缘强化,3例呈渐进性强化。病理特征:瘤体大部分呈实性或息肉样肿块;光镜示肿瘤组织由增生的纤维母细胞、肌纤维母细胞和炎症细胞构成,其中可见大量的浆细胞、淋巴细胞浸润,细胞无明显异型性,核分裂象少见。免疫组化显示Vimentin(6/6)、SMA(7/7)均为强阳性表达,ALK(1/8)及CD-68(2/8)为部分阳性表达,其他标记物S-100、CD117和CD34表达阴性。结论 CT及MRI检查对IMT的定位和定性诊断及鉴别诊断具有一定的价值,仔细分析其强化方式有望提出倾向性诊断,但IMT的确诊有赖于组织病理学及免疫组织化学检查。 相似文献
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Structural and functional changes of coronary and carotid arteries in patients with ischemic heart disease 总被引:1,自引:0,他引:1
Gaman SA Balakhonova TV Sinitsyn VE At'kov OIu Ternovoĭ SK 《Terapevticheski? arkhiv》2005,77(4):15-21
AIM: To assess prevalence of atherosclerotic changes in coronary arteries by computed tomography (CT) and carotid arteries by ultrasound duplex scanning (UDS) in patients with ischemic heart disease (IHD); to analyse viscoelastic properties of the walls of the common carotid arteries and their correlation with the results of carotid artery UDS and coronary artery CT. MATERIAL AND METHODS: CT and UDS were made in 100 patients with clinically and coronarographycally verified diagnosis of IHD. RESULTS: Calcinates in coronary arteries were found in 96% patients. The mean coronary calcium index (MCCI) was 544.8 +/- 718.5 units (from 0 to 3954 units). Atherosclerotic affection of carotid arteries was registered in 89% patients. Mean thickness of intima-media complex (IMT) of the common carotid arteries was 0.96 +/- 0.02 mm (0.60 mm - 1.87 mm). A correlation was found between coronary MCCI and IMT of the common carotid arteries. The stepwide regression analysis determined such predictors of coronary calcinosis as increased value of IMT of the common carotid arteries and atherosclerotic plaques (ASP) in carotid arteries. Viscoelasticity of the walls of the common carotid arteries in IHD patients differ from that of healthy subjects. This demonstrates stiffness of arterial wall in patients with IHD. There is a correlation between these parameters and IMT of the common carotid arteries. CONCLUSION: Combination of UDS with CT in diagnosis of atherosclerotic lesions of different arteries provides more complete information about structural-functional changes in patients with IHD. Such non-invasive tests as measurement of IMT of common carotid arteries and detection of ASP in carotid arteries by UDS, determination of coronary MCCI may serve screening parameters in diagnosis of coronary atherosclerosis. 相似文献
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Mari Inoue Tomoyuki Ohta Hisashi Shioya Shun Sato Hiroyuki Takahashi Norio Nakata Chiaki Taniguchi Megumi Hirano Makiko Nishioka Hironori Yamakawa 《Journal of Medical Ultrasonics》2018,45(2):331-335
We encountered a case of inflammatory myofibroblastic tumor (IMT) of the breast with simultaneous intracranial, lung, and pancreas involvement. Here, we present the clinical imaging results and report the significance of sonographic findings of breast IMT along with a review of the literature. A 16-year-old girl with a history of subarachnoidal hemorrhage was admitted to our hospital due to tonic–clonic seizure. Computed tomography (CT) and magnetic resonance imaging (MRI) showed multiple intracranial, lung, and pancreas mass lesions and a solitary mass lesion in the right breast. Breast ultrasonography showed a circumscribed oval-shaped hypoechoic mass with a central hyperechoic region. Power Doppler sonography revealed an unusual spiral-shaped flow signal. Breast tumorectomy was performed for definitive diagnosis, and pathological analysis indicated IMT. A literature review indicated that ultrasonographic findings of IMT of the breast are nonspecific, as in other systems or organs. It would be difficult to make a diagnosis of IMT of the breast preoperatively due to its rarity and the lack of specificity of clinical imaging findings. In addition, it is better to consider the possibility of IMT of the breast especially in younger patients without an obvious family history of hereditary breast cancer. 相似文献
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炎性肌纤维母细胞瘤的多层螺旋CT表现 总被引:12,自引:4,他引:8
目的探讨炎性肌纤维母细胞瘤(IMT)的多层螺旋CT表现,以提高对该病影像表现的认识。方法回顾性分析2005年3月—2008年2月经手术病理证实的IMT共18例,病变位于肺部6例,肝脏1例,脾脏2例,胆总管1例,腹膜后1例,盆腔1例,上颌窦2例,浅表软组织4例。4例患者行CT平扫,14例平扫后行单期或多期增强扫描。结果肺内病变2例为中央型,CT表现为边界清楚的实性肿物;4例为周围型,其中3例表现为边界不清、形态不规则的肿物,1例表现为边界光整的小结节。肺外病变CT表现为不同部位的实性肿物或结节。增强扫描肿瘤呈均匀或不均匀中度到明显强化。病理示瘤组织由梭形纤维细胞及炎细胞组成,免疫组化染色肌源性蛋白阳性表达。结论IMT是一种少见的肿瘤,多层螺旋CT检查能为其提供准确的解剖部位等信息,在定性诊断方面尤其对肺内病变有一定价值,最后确诊有赖于组织病理学及免疫组化检查。 相似文献
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国人颈动脉内膜-中膜厚度与心血管疾病的相关性研究 总被引:65,自引:0,他引:65
目的:探讨颈动脉内膜-中膜厚度(IMT)在心血管疾病中的意义。方法:对一组男性心血管疾病易患人群(358例)进行常规体检,包括心血管疾病及其危险因素的调查;同时应用血管超声技术测量双侧颈总动脉、分叉处及颈内动脉后壁IMT。采用相关分析及多元线性回归方程分析颈动脉IMT与心血管疾病及其危险因素之间的关系。结果:颈动脉IMT与年龄、血压及血糖呈正相关,与开始吸烟年龄呈负相关。进一步研究表明高血压病、糖尿病及心肌梗塞、脑卒中患者的IMT值显著高于其各自对照组(P<0.05),而心绞痛患者颈动脉IMT值虽然高于对照组,但差异无显著性意义(P>0.05)。结论:超声检测颈动脉IMT可作为监测心血管疾病发生及发展的一项有意义的指标。 相似文献
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目的 探讨基于CT平扫的影像组学在鉴别肺炎性肌纤维母细胞瘤(IMT)和周围型肺癌(PLC)的价值.方法 回顾性收集经我院及外院手术后病理证实的72例肺IMT及79例PLC的资料.使用A.K(Artificial Intelligence Kit)软件从CT平扫图像中提取高通量数据,对其进行特征筛选及降维,去除了重复性差... 相似文献