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Perinephric myxoid pseudotumor of fat in a young patient with a horseshoe kidney complicated by an obstructing renal calculus

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Asian Journal of Urology 2023年第3期10卷 382-384页

作者： Ren Wei Liu Gideon Tan Yi Ting Lim Wei Jin Chua Amanda Cheng Ying Mei Wong Victor Lee thomas thamboo Department of Diagnostic Imaging National University HospitalSingapore Department of Pathology National University HospitalSingapore Department of Urology National University HospitalSingapore

Dear Editor,Perinephric myxoid pseudotumor of fat(PMPF)is a recently described entity with only a few cases published in the *** imaging,the appearances overlap with other better-known fat-containing lesions such as angiomyolipoma and retroperitoneal *** present a novel case of PMPF in a young male patient with horseshoe *** discuss the imaging characteristics on computed tomography(CT)and magnetic resonance imaging,differential diagnoses,as well as the histopathological features of this rare *** was obtained from the patient for treatment and publication.

关键词： patient kidney sarcoma

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Prospective validation of %p2PSA and the Prostate Health Index, in prostate cancer detection in initial prostate biopsies of Asian men, with total PSA 4-10 ng ml-1

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Asian Journal of Andrology 2017年第3期19卷 286-290页

作者： Lincoln GL Tan Yung Khan Tan Bee Choo Tai Karen ML Tan Vineet Gauhar Ho Yee Tiong Robert CW Hawkins thomas P thamboo Felicia SK Hong Edmund Chiong Department of Urology National University Hospital National University Health System Singapore Department of Urology Tan Tock Seng Hospital Singapore Saw Swee Hock School of Public Health National University of Singapore Singapore Department of Laboratory Medicine National University Hospital Singapore Department of Urology Alexandra Hospital Jurong Health Singapore Department of Laboratory Medicine Tan Teck Seng Hospital Singapore Department of Pathology National University Hospital Singapore.

Despite its widespread use for prostate cancer screening, low specificity makes PSA a suboptimal biomarker, especially in the diagnostic ＂gray zone＂ of 4-10 ng ml-1, False-positives lead to unnecessary biopsies with attendant morbidities. This is the first prospective validation study of %p2PSA and the Prostate Health Index （PHI） in Asian men presenting with a total PSA between 4.0 and 10 ng m1-1. We studied 157 Asian men between 50 and 75 years old, with normal per rectal prostate examinations, undergoing their first prostate biopsy, using a standardized biopsy protocol, for PSA levels of 4-10 ng ml-1, Thirty （19.1%） were found to have prostate cancer on biopsy. Statistically significant differences between patients with and without prostate cancer were found for total PSA, p2PSA, %p2PSA, and PHh The areas under the curve of the receiver operating characteristic curve for total PSA, %fPSA, %p2PSA, and PHI were 0.479, 0.420, 0.695, and 0.794, respectively. PHI predicts prostatic biopsies results best. At a sensitivity of 90%, the specificity （95% CI） of PHI was 58.3%, more than triple the specificity of total PSA at 17.3%, potentially avoiding 77 （49%） unnecessary biopsies. Similar to studies in mainly Caucasian populations, we have prospectively shown that %p2PSA and PHI greatly outperform total and free to total PSA ratio, in the detection of prostate cancer at first biopsy. Higher PHi levels also correspond to increasing the risk of detecting GS ≥7 cancers. We have validated the use of PHI to aid decision-making regarding prostate biopsies in Asian men with serum PSA between 4 and 10 ng *** its widespread use for prostate cancer screening, low specificity makes PSA a suboptimal biomarker, especially in the diagnostic ＂gray zone＂ of 4-10 ng m1-1, False-positives lead to unnecessary biopsies with attendant morbidities. This is the first prospective validation study of %p2PSA and the Prostate Health Index （PHI） in Asian men presenting with a total PSA betwe

关键词： biological markers prostate specific antigen prostatic neoplasms

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