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- W2387846427 abstract "Objective To discuss the etiology,pathology and imaging characteristics of upper ureteral stenosis or obstruction,to improve understanding of the disease.Methods One hundred and eighty cases of upper ureteral stenosis or obstruction confirmed by clinical diagnosis or by surgery and pathology during July 2009 and June 2012 from Shenzhen Longhua People's Hospital were collected,the imaging findings of KUB plain film,IVP,CT,MRI were retrospectively analyzed,the etiology,pathology and image-related characteristics were explored,classified and typed.Results Among the 180 cases,according to etiology,there were 36 cases of congenital anomalies(including 8 cases of ureteral stenosis) which made up 20% of the total,144 cases of acquired or secondary stenosis which made up 80%;according to lesion number,there were 178 cases of single stenosis(limitations diaphragm or valvular stenosis,segmental stenosis) which made up 99% and 2 cases of multiple narrow which made up 1%;according to diseased region,there were 140 cases of cavity narrowness which made up 78%,35 cases of wall stenosis which made up 19% and 5 cases of stenosis of the external wall of oppression which made up 3%;according to pathological feature,there were 180 cases of organic narrowness,one case of functional narrowness which was not included.Conclusion KUB plain film can clarify the calculi diagnosis of the upper ureter.IVP can show the causes of stenosis or obstruction in upper ureter segment cavity and function of renal excretory,which can be regarded as a supplement diagnosis of the retrograde pyelography for the ones who have poor renal function.CT scan and the enhancement can display the reason for oppression on/outside the cavity wall.MRI can find the narrow site of obstruction and distinct intrinsic stenosis and external stenosis.MRU has good effect in directly showing the slight,moderate and severe hydrocephalus of renal function." @default.
- W2387846427 created "2016-06-24" @default.
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- W2387846427 date "2013-01-01" @default.
- W2387846427 modified "2023-09-25" @default.
- W2387846427 title "Stenosis or Obstruction Imaging Diagnosis and Differential Diagnosis of Upper Ureteral" @default.
- W2387846427 hasPublicationYear "2013" @default.
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