颈部淋巴结结核的CT及B超表现

目的：复习１４例以头颈部肿瘤就医,组织学诊断为颈淋巴结结核的ＣＴ及Ｂ超表现,旨在提高对颈淋巴结结核的影像学诊断的认识。材料与方法：女性患者１３例,男性１例。ＣＴ平扫１例,直接增强扫描１３例,Ｂ超扫描８例,结果：以内颈链下组及锁骨上下区受累最常见,均为多个淋巴结同时受累（１００％）,病变部分或全部与邻近肌肉粘连者７８．０％,ＣＴ增强扫描分３型：Ⅰ型：均匀等密度强化;Ⅱ型;薄环形周边强化,中央低密度相     

盆腔子宫内异位症的CT及B超表现

目的：探讨ＣＴ及Ｂ超诊断盆腔子宫内膜异位症的价值。材料和方法：回顾性分析１５例经手术病理证实的盆腔子宫内膜异位症影像学改变。结果：１２例表现为卵巢宫内膜异位囊肿、ＣＴ及Ｂ超主要表现：（１）常为两侧性，外形多呈分房状；（２）内部液体密度偏高、不一致或出现以、液性暗区底部有可移动的光点；（３）壁稍厚欠均匀、边缘毛糙，与周围结构明显粘连。１例肠道壁实性肿物，两例盆腔宫致输尿管狭窄及肾积水。结论：综合分析     

儿童白血病肾浸润的CT和B超表现

目的 结合文献探索白血病肾浸润的病理与典型ＣＴ、Ｂ超表现。方法 回顾分析１１例经骨髓穿刺检查确诊的白血病肾浸润的ＣＴ、Ｂ超表现。急性淋巴细胞白血病（ＡＬＬ）８例，急性非淋巴细胞白血病（ＡＮＬＬ）３例，其中５例同行增强ＣＴ检查，６例同期行Ｂ超检查，５例化疗后行ＣＴ或Ｂ超复查，结果 １１例中双肾浸润９例，其中ＡＬＬ８例，ＡＮＬＬ１例，弥漫浸润结节浸润５例。单肾浸润２例，均为ＡＮＬＬ。白血病肾浸润多为双     

B超诊断宫外孕25例分析

Ｂ超诊断宫外孕２５例分析张春香周晓敏宫外孕是妇产科中常见的急腹症，需早期作出诊断。我院从１９８７～１９９６年，应用Ｂ超诊断宫外孕２５例，现报告如下。１病例介绍２５例宫外孕，年龄１８～４５岁，平均３２岁。有停经史者１３例，阴道流血９例，腹痛２１例，失血...     

盆腔内胚窦癌一例的B超与CT表现

盆腔内胚窦癌一例的Ｂ超与ＣＴ表现王占江关长群芦海红蒋苏齐患者女，２３岁。１个月前无任何诱因出现腹胀，排尿困难，发现下腹部有鸡卵大肿物，１个月长至婴儿头大小。体检：下腹膨隆，可扪及１５ｃｍ×１５ｃｍ肿物，质硬，有压痛。图１Ｂ超检查：下腹部至盆腔显示一个...     

宫外孕11例B超图像分析

宫外孕１１例Ｂ超图像分析１０００８１北京空军北京医院梁平，进克效，刘春平，石英玲，夏末中图法分类号Ｒ７１４．２２Ｂ超检查结果与临床最后诊断结果比较表明，１１例宫外孕病人中，除１例超声诊断为非宫外孕，与临床最后诊断不符外，其余病人超声和临床最后诊断的结...     

CT与B超诊断肾损伤的价值

随着近年来交通事故、治安问题和工伤事故的增加 ,肾损伤的发生率也明显升高。影像学检查在判断肾损伤情况及决定治疗措施方面愈显必要。但是 ,对于影像学在肾损伤诊断价值方面的评价研究却较少见。因此 ,本研究回顾分析了Ｂ超与ＣＴ肾损伤的影像诊断资料 ,以探讨其诊断价值。1     

肝硬化肝脏内小结节的B超、CT及MRI表现

慢性肝炎和肝硬化病人中肝细胞癌(HCC)发病率增高,B超(US)对检出这类病人的小HCC以及癌前结节起重要作用。尽管多时相动态对比增强CT技术和钆剂增强快速MR成像技术的发展使HCC的检出增加,但有时仍然不能显示某些只能为US所检出的癌前增生结节。为评价硬化肝脏内疑为HCC的≤2cm结节的放射学和US表现以及CT和MRI等不同成像技术对病变的显示和可检出性,作者对12个月内23例US、CT或MRI检查疑为肝恶性肿瘤、资料完整的病人进行研究。患者47～83     

肾癌的CT诊断与B超的对照

目的：研究肾癌对肾周组织侵犯征象，提高ＣＴ术前分期的诊断准确率。并为诊断肾癌合理选用ＣＴ、Ｂ超提供依据。材料与方法：总结６３例经手术、病理证实的肾癌对术前ＣＴ、Ｂ超的诊断准确率，部分肾周侵犯征象检出率进行对比分析。结果：ＣＴ、Ｂ的诊断准确率，部分肾周侵犯征象的检出率相似，但ＣＴ在肾周大血管侵犯及腹膜后淋巴结转移的检出率优于Ｂ超。结论：ＣＴ对肾癌的术前分期有明显优势。     

异位妊娠的CT诊断

目的：探讨异位妊娠的ＣＴ表现及其诊断价值。材料和方法：回顾性分析５例经手术病理证实为异位妊娠的ＣＴ资料，并结合临床进行分析。结果：５例异位妊娠均发生在输卵管，其中３例位于输卵管壶腹部，２例位于输卵管间质部。ＣＴ扫描分别表现为患侧子宫体周围密度不均、大小不等的软组织包块和宫角局部膨大伴低密度区。ＣＴ增强扫描显示密度不均且有强化。５例中２例异位妊娠发生破裂，表现为包块＞５ｃｍ，与宫体及周围结构界面不清，有盆腔内积血。结论：异位妊娠有其特殊的ＣＴ征像，结合临床表现可作出准确诊断     

异位妊娠的CT与MRI表现

目的 探讨异位妊娠的CT与MRI表现.方法 回顾性分析20例经手术证实的异位妊娠患者CT与MRI影像,其中输卵管妊娠11例,卵巢妊娠2例,宫角妊娠1例,切口妊娠6例;12例行CT检查,8例行MRI检查.结果 异位妊娠CT与MRI表现为子宫内膜以外部位的厚壁囊性、出血性或混杂密度/信号肿块,血管丰富,增强扫描厚壁环形强化、边缘明显强化或不均匀强化,伴不同程度的腹盆腔积血.输卵管或妊娠囊壁不完整,肿块境界不清、密度/信号不均匀伴中等度到大量腹盆腔积血,急性期出血或活动性出血提示异位妊娠破裂.结论 异位妊娠的CT与MRI表现具有一定的特征性,当育龄期女性出现腹盆腔出血或盆腔肿块时应考虑异位妊娠的可能性.     

CT Findings of an Ectopic Pancreas in the Anterior Mediastinum

We report here on a rare case of an ectopic pancreatic tissue in the anterior mediastinum. A 32-year-old woman without any symptoms was transferred to our hospital because of an abnormal large mediastinal shadow on her chest radiograph during a checkup. The computed tomography (CT) scan revealed a giant cystic-solid mass that measured 16 × 13 × 8 cm and it was located in the center of the anterior mediastinum and it symmetrically grew to two sides. On enhanced CT scans, the solid component of the mass showed marked enhancement. We performed total surgical resection of the mass and complete pancreatic tissues were verified on the pathological examination.     

CT and US Findings of Multilocular Cystic Renal Cell Carcinoma

Objective

Multilocular cystic renal cell carcinoma (MCRCC) is a recently described variety of renal cell carcinoma with characteristic pathologic and clinical features. The purpose of this study was to analyze the imaging findings of MCRCCs.

Materials and Methods

Ten adult patients with pathologically proven unilateral MCRCC who underwent renal US and CT were included in this study. The radiologic findings were retrospectively evaluated for cystic content, wall, septum, nodularity, calcification and solid portion by three radiologists who established a consensus. Imaging and postnephrectomy pathologic findings were compared.

Results

All patients were adults (six males and four females) and their ages ranged from 33 to 68 years (mean, 46). On US and CT images, all tumors appeared as well-defined multilocular cystic masses composed of serous or complicated fluid. In all patients, unenhanced CT scans revealed hypodense cystic portions, and in four tumors, due to the presence of hemorrhage or gelatinous fluid, some hyperdense areas were also noted. In no tumor was an expansile solid nodule seen in the thin septa, and in only one was there dystrophic calcification in a septum. Small areas of solid portion constituting less than 10% of the entire lesion were found in six of the ten tumors, and these areas were slightly enhanced on enhanced CT scans. In all patients, imaging and pathologic findings correlated closely.

Conclusion

On US and CT images, MCRCC appeared as a well-defined multilocular cystic mass with serous, proteinaceous or hemorrhagic fluid, with no expansile solid nodules in the thin septa, and sometimes with small slightly enhanced solid areas. Where radiologic examinations demonstrate a cystic renal mass of this kind in adult males, MCRCC should be included in the differential diagnosis.     

异位脑膜瘤影像学表现与病理学特征

脑膜瘤是颅内及脊椎内常见肿瘤之一 ,约占颅内肿瘤 15 %～ 2 0 % ,而发生在颅外及脊椎外的脑膜瘤 ,即异位脑膜瘤 ,非常罕见 ,仅占其 1%～ 2 % [1] ,大部分仅为个例报道。本文将对异位脑膜瘤的组织发生、病理学特征、临床特点及影像学表现进行综述。1　异位脑膜瘤的组织发生学脑     

异位妊娠的B型超声诊断

报告经手术病理证实的７３例异位妊娠，Ｂ超诊断符合率９０．４％（６６／７３），误诊率９．６％（７／７３）。着重探讨异位妊娠的声像图特征、诊断与鉴别诊断，分析误诊原因以提高Ｂ超对异位妊娠的诊断准确性。     

异位支气管囊肿的CT、MRI表现(附19例报告并文献复习)

目的探讨异位支气管囊肿的CT及MRI表现。资料与方法回顾性分析19例经手术及病理证实的异位支气管囊肿患者资料,讨论并复习其CT及MRI表现。结果椎管内8例,颈部3例,颅内3例,皮下组织2例,左侧肾上腺区、腹膜后及蝶窦内各1例。病变多为类圆形及椭圆形,偶有分叶,边界清楚,在CT像上呈较高密度影或囊性密度影,在MRI上呈长T1、长T2信号或双高信号,均无强化。异位支气管囊肿可继发感染并伴有先天畸形或肿瘤。结论异位支气管囊肿发病部位及临床表现缺乏特异性,CT及MRI有助于病变定位,明确病变性质,但要发现其支气管来源需依靠病理。     

Actinomycosis of the Gallbladder Mimicking Carcinoma: a Case Report with US and CT Findings

We describe a case of actinomycosis of the gallbladder mimicking carcinoma. Sonography showed a hypoechoic mass replacing gallbladder lumen and engulfing a stone; contrast-enhanced computed tomography showed a heterogeneously enhanced thickened gallbladder wall with subtle, disrupted luminal surface enhancement, which formed a mass. As a result of the clinical and radiologic presentation, our impression was of gallbladder carcinoma. Actinomycosis should be included in the differential diagnosis when sonography and computed tomography findings show a mass engulfing the stone in the gallbladder and extensive pericholecystic infiltration with extension to neighboring abdominal wall muscle.     

异位妊娠与卵巢肿瘤的鉴别诊断

症状不典型的异位妊娠,特别是陈旧性异位妊娠的临床诊断较困难,影像检查中极易与卵巢肿瘤及炎性包块混淆。为提高对它们的鉴别诊断,我们对18例异位妊娠,46例卵巢肿瘤的CT表现作一回顾性分析,试图揭示其CT表现特点。1资料与方法1.118例异位妊娠,均位于输卵管,其中3例位于间质部,12例位于壶腹部,3例位于双侧伞部,其中12例为陈旧性异位妊娠。均经手术及病理证实。年龄23~35岁,病程:症状出现至CT检查时间5~30d。18例中10例有停经史,停经时间为5~9周,另8例无明显停经史。临床表现腹痛12例,阴道不规则流血17例,腰酸伴肛门下坠感7例,妇检在附件…