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calyceal diverticulum Mimicking Simple Parapelvic Cyst:a Case Report

Chinese Medical Sciences Journal 2015年第1期30卷 56-58页

作者： Yong-han Peng Wei Zhang Xiao-feng Gao Ying-hao Sun Department of Urology Changhai Hospital Second Military Medical University

calyceal diverticulum is a cystic intrarenal cavity lined by nonsecretory transitional epithelium that communicates with the collecting system via a narrow isthmus or infundibulum. It is arare anatomic anomaly with an incidence of 0.2% to 0.6% in the patients undergoing renal imaging.1 Single imaging modality usually cannot differentiate calyceal diverticulum from other cystic renal diseases.2 Here, we report a 60-year-old male who was reliably diagnosed with calyceal diverticulum by retrograde urography combined with non-enhanced computed tomography （CT） and magnetic resonance urography （MRU）.

关键词： calyceal diverticulum retrograde urography computed tomography magnetic resonance urography

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Retrospective Analysis of Ultrasound-guided Flexible Ureteroscopy in the Management of calyceal Diverticular Calculi

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Chinese Medical Journal 2016年第17期129卷 2067-2073页

作者： Ji-Qing Zhang Yong Wang Jun-Hui Zhang Xiao-Dong Zhang Nian-Zeng Xing Department of Urology Beijing Chaoyang Hospital Capital Medicar University Beijing 100020 China

Background： Percutaneous nephrolithotomy （PCNL） is the most widely recommended treatment lbr calyceal diverticular calculi, providing excellent stone-free results. However, its invasiveness is not negligible considering its major complication rates. Flexible ureteroscopy （FURS） is currently used to treat calyceal diverticula. However, the greatest drawback of FURS is locating the diverticulum since its neck is narrow and concealed. In such a case, the FURS procedure must be converted to PCNL. The aim of this study was to evaluate ultrasound-guided flexible ureteroscopy （UFURS） identifying diverticulum and the managenlent of calyceal diverticular calculi. Methods： A retrospective analysis was conducted on 24 patients who had calyceal diverticnlar calculi. In all 12 patients in tile UFURS group, direct FURS failed to find evidence of calyceal diverticula but were confirmed with imaging. The other 12 patients in the PCNL group received PCNL plus fulguration of the divenicular walls. Results： Puncture ofcalyceal diverticulum was successful in all 12 UFURS patients. Two patients in this group had postoperative residual calculi and two patients developed lever. In the PCNL group, percutaneous renal access and lithotomy were successful in all 12 patients. One patient in this group had residual calculi, one had perirenal hematoma, and two patients developed fever. No significant difference was found in the operating time （UFURS vs. PCNL, 91.8 ± 24.2 vs. 86.3 ± 18.7 min）, stone-free rate （UFURS vs. PCNL, 9/12 vs. 10/12）, and rate of successful lithotripsy （UFURS vs. PCNL, 10/12 vs. 11/12） between the two groups （all P 〉 0.05）. Postoperative pain scores in the FURS group were significantly lower than that in the PCNL group （2.7 ±1.2 vs. 6.2 ±1.5. P 〈 0.05）. Hospital stay in the UFURS group was significantly shorter than that in the PCNL group （3.4 ± 0.8 vs. 5.4 ± 1.0 days, P 〈 0.05）. All patients were symptom-free following surgery （UFURS vs. PCNL, 10/10 vs. 12/12）. Conclusio

关键词： calyceal diverticulum calyceal diverticulum Calculi Flexible Ureteroscope Percutaneous Nephrolithotonly Puncture Ultrasound

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Present indications and techniques of percutaneous nephrolithotomy:What the future holds?

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Asian Journal of Urology 2018年第4期5卷 287-294页

作者： Itay M.Sabler Ioannis Katafigiotis Ofer N.Gofrit Mordechai Duvdevani Department of Urology Hadassah Hebrew University HospitalEin KaremJerusalemIsrael

The purpose of the review was to present the latest updates on percutaneous nephrolithotomy(PCNL)procedure in terms of indications and evolving techniques,and to identify the advantages and disadvantages of each *** data for this review were collected after a thorough PubMed search in core clinical journals in English *** key words included“PCNL”and“PNL”in combination with“indications”,“techniques”,“review”and“miniaturized PCNL”.Publications relevant to the subject were retrieved and critically *** European and American Urology Association Nephrolithiasis Guidelines were included as *** indications for standard PCNL have been changed through the past *** evolution of the procedure,innovations and the development of new technical approaches,the indications for miniaturized PCNL have not been standardized *** is a need for well-constructed randomized trials to explore the indications,complications and results for each evolving approach.A continuous reduction of tract size is not the only revolution of the last *** is constant ongoing interest in developing new efficient miniature instruments,intracorporeal lithotripters and sophisticated tract creation *** can summarize that,PCNL represents a valuable well-known tool in the field of *** should be open minded to future changes in surgical approaches and technological improvements.

关键词： Percutaneous nephrolithotomy Nephrolithiasis Intracorporeal lithotripsy Lasers Tract creation Renal access Horseshoe kidney calyceal diverticulum Lower pole stones

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