PDF(Pubmed)
Abstract：
BACKGROUND: Jackstone is a rare entity of calculi in urinary tracts and has the characteristic appearance resembling toy jacks. They are nearly always reported to occur in the urinary bladder, we first report a rare case of jackstone located in the obstructed renal calyx.
METHODS: We report a 46-year-old man presenting with intermittent, painless gross hematuria and left flank pain. Urinary computed tomography revealed staghorn stones and secondary hydronephrosis. A jackstone with radiating branches was found in one of the dilated renal calyx. Percutaneous nephrolithotomy was performed and endoscopic images were recorded during the operation. Postoperative stone composition analysis revealed it as calcium oxalate monohydrate stones.
CONCLUSIONS: Jackstones can occur in the renal collecting system besides the bladder. The unique appearance and imaging manifestations are the most important factors in the diagnosis of jackstones, and further exploration of the formation mechanism is required.
METHODS: We report a 46-year-old man presenting with intermittent, painless gross hematuria and left flank pain. Urinary computed tomography revealed staghorn stones and secondary hydronephrosis. A jackstone with radiating branches was found in one of the dilated renal calyx. Percutaneous nephrolithotomy was performed and endoscopic images were recorded during the operation. Postoperative stone composition analysis revealed it as calcium oxalate monohydrate stones.
CONCLUSIONS: Jackstones can occur in the renal collecting system besides the bladder. The unique appearance and imaging manifestations are the most important factors in the diagnosis of jackstones, and further exploration of the formation mechanism is required.
摘要：
背景：Jackstone是尿路中罕见的结石，具有类似玩具千斤顶的特征外观。据报道，它们几乎总是发生在膀胱中，我们首先报告了一例罕见的位于阻塞的肾萼中的夹风岩。
方法：我们报告了一名46岁的男性，无痛性肉眼血尿和左侧腹疼痛。泌尿系计算机断层扫描显示鹿角状结石和继发性肾积水。在其中一个扩张的肾萼中发现了一个带有辐射分支的夹心石。术中进行经皮肾镜取石术并记录内镜图像。术后结石成分分析显示其为草酸钙一水合物结石。
结论：结石可发生在膀胱以外的肾脏集合系统。独特的外观和影像学表现是诊断结石的最重要因素，需要进一步探索形成机制。
方法：我们报告了一名46岁的男性，无痛性肉眼血尿和左侧腹疼痛。泌尿系计算机断层扫描显示鹿角状结石和继发性肾积水。在其中一个扩张的肾萼中发现了一个带有辐射分支的夹心石。术中进行经皮肾镜取石术并记录内镜图像。术后结石成分分析显示其为草酸钙一水合物结石。
结论：结石可发生在膀胱以外的肾脏集合系统。独特的外观和影像学表现是诊断结石的最重要因素，需要进一步探索形成机制。
