AIM:To investigate the sonographic features and diagnostic value of endoscopic ultrasonography (EUS) for duodenal lipomas (DLs).METHODS:A total of eight consecutive patients with DL diagnosed pathologically were inclu...AIM:To investigate the sonographic features and diagnostic value of endoscopic ultrasonography (EUS) for duodenal lipomas (DLs).METHODS:A total of eight consecutive patients with DL diagnosed pathologically were included in the study.One EUS expert reviewed the ultrasonic images for all lesions,including the original layer of the duodenal wall,the echo intensity and the echo homogeneity.The size of the lesions and the perifocal structures were also investigated.The diagnosis by EUS was compared with the histological results.RESULTS:Using routine endoscopy,only one case was correctly diagnosed as DL.Four cases were classified as submucosal tumors,and three cases were mistaken for stromal tumors.All tumors appeared as round or oval intensive hyperechoic lesions with distinct anterior borders that originated from the submucosal layer on EUS.Tumors ranged from 8 to 36 mm in size,with an average size of 16 mm.Homogeneous echogenicity was seen in all cases except one that had a tubular structure inside the tumor.Echo attenuation was observed only in the area behind the tumors in five cases,and it was observed both inside and behind the tumors in three cases in which the posterior border was obscure or invisible.Seven (87.5%) cases were correctly diagnosed as DL,and one (12.5%) was mistaken as Brunner's gland adenoma by EUS.Pathologically,all tumors originated from the submucosal layer and consisted of mature fat cells without heteromorphism.Among the fat cells,there was a small amount of thick-wall vessels infiltrating the lymphocytes,and abundant fibrous connective tissues.CONCLUSION:On EUS,DL is featured as an intensive homogeneous hyperechoic submucosal lesion with marked echo attenuation and without involvement of the mucosa.展开更多
<strong>Background:</strong> Druses of the papilla constitute abnormal deposits of calcified hyaline material at the level of the head of the optic nerve. They can be superficial or deep. <strong>Aim...<strong>Background:</strong> Druses of the papilla constitute abnormal deposits of calcified hyaline material at the level of the head of the optic nerve. They can be superficial or deep. <strong>Aim:</strong> The aim of this study is to show the utility of ocular ultrasound in ophthalmology in underdeveloped countries for the characterization of optic disc druse. <strong>Case Presentation:</strong> Our study relates to a clinical observation of buried papillary druses diagnosed by ocular ultrasound. The ophthalmologic examination revealed an aspect of false papillary edema in the fundus. The ocular ultrasound revealed hyperechogenic deposits buried in the papillary margins, which suggests the deep papillary druses. <strong>Conclusion:</strong> Ocular ultrasound still has a prominent place in the diagnosis of certain eye conditions despite the new sophisticated means available to ophthalmology to date.展开更多
目的分析高回声小肾癌(hyperechoic small renal carcinoma,HSRC)与错构瘤(renal harmatoma,RH)的二维声像图及彩色多普勒成像,以期提高超声诊断率。方法分析18例经病理证实的高回声小肾癌的声像图资料,以同时期内大小相匹配的30例错构...目的分析高回声小肾癌(hyperechoic small renal carcinoma,HSRC)与错构瘤(renal harmatoma,RH)的二维声像图及彩色多普勒成像,以期提高超声诊断率。方法分析18例经病理证实的高回声小肾癌的声像图资料,以同时期内大小相匹配的30例错构瘤做对照,比较两组的超声表现特点。结果HSRC组周边多有低回声晕,RH组周边多无低回声晕,两组差异有统计学意义(χ^2=36.002,P<0.05);HSRC组周边可有条状血流信号,内部可有丰富或不丰富血流信号,RH组周边及内部多无血流信号,两组差异有统计学意义(χ^2=4.000,P<0.05;χ^2=30.039,P<0.05);HSRC组与RH组在边界、内部回声、有无突出肾轮廓方面差异无统计学意义(P>0.05)。结论周边低回声晕、周边条状血流信号及内部血流信号情况对高回声小肾癌及错构瘤的鉴别诊断具有较高价值。展开更多
基金Supported by Medical and Health Research Fund of Zhejiang Province,China,No. 491010-W10495
文摘AIM:To investigate the sonographic features and diagnostic value of endoscopic ultrasonography (EUS) for duodenal lipomas (DLs).METHODS:A total of eight consecutive patients with DL diagnosed pathologically were included in the study.One EUS expert reviewed the ultrasonic images for all lesions,including the original layer of the duodenal wall,the echo intensity and the echo homogeneity.The size of the lesions and the perifocal structures were also investigated.The diagnosis by EUS was compared with the histological results.RESULTS:Using routine endoscopy,only one case was correctly diagnosed as DL.Four cases were classified as submucosal tumors,and three cases were mistaken for stromal tumors.All tumors appeared as round or oval intensive hyperechoic lesions with distinct anterior borders that originated from the submucosal layer on EUS.Tumors ranged from 8 to 36 mm in size,with an average size of 16 mm.Homogeneous echogenicity was seen in all cases except one that had a tubular structure inside the tumor.Echo attenuation was observed only in the area behind the tumors in five cases,and it was observed both inside and behind the tumors in three cases in which the posterior border was obscure or invisible.Seven (87.5%) cases were correctly diagnosed as DL,and one (12.5%) was mistaken as Brunner's gland adenoma by EUS.Pathologically,all tumors originated from the submucosal layer and consisted of mature fat cells without heteromorphism.Among the fat cells,there was a small amount of thick-wall vessels infiltrating the lymphocytes,and abundant fibrous connective tissues.CONCLUSION:On EUS,DL is featured as an intensive homogeneous hyperechoic submucosal lesion with marked echo attenuation and without involvement of the mucosa.
文摘<strong>Background:</strong> Druses of the papilla constitute abnormal deposits of calcified hyaline material at the level of the head of the optic nerve. They can be superficial or deep. <strong>Aim:</strong> The aim of this study is to show the utility of ocular ultrasound in ophthalmology in underdeveloped countries for the characterization of optic disc druse. <strong>Case Presentation:</strong> Our study relates to a clinical observation of buried papillary druses diagnosed by ocular ultrasound. The ophthalmologic examination revealed an aspect of false papillary edema in the fundus. The ocular ultrasound revealed hyperechogenic deposits buried in the papillary margins, which suggests the deep papillary druses. <strong>Conclusion:</strong> Ocular ultrasound still has a prominent place in the diagnosis of certain eye conditions despite the new sophisticated means available to ophthalmology to date.
文摘目的分析高回声小肾癌(hyperechoic small renal carcinoma,HSRC)与错构瘤(renal harmatoma,RH)的二维声像图及彩色多普勒成像,以期提高超声诊断率。方法分析18例经病理证实的高回声小肾癌的声像图资料,以同时期内大小相匹配的30例错构瘤做对照,比较两组的超声表现特点。结果HSRC组周边多有低回声晕,RH组周边多无低回声晕,两组差异有统计学意义(χ^2=36.002,P<0.05);HSRC组周边可有条状血流信号,内部可有丰富或不丰富血流信号,RH组周边及内部多无血流信号,两组差异有统计学意义(χ^2=4.000,P<0.05;χ^2=30.039,P<0.05);HSRC组与RH组在边界、内部回声、有无突出肾轮廓方面差异无统计学意义(P>0.05)。结论周边低回声晕、周边条状血流信号及内部血流信号情况对高回声小肾癌及错构瘤的鉴别诊断具有较高价值。
