Lewi H J, Scott R
Urology. 1986 Sep;28(3):232-4. doi: 10.1016/0090-4295(86)90049-x.
Extrusion of a urinary calculus is a rare occurrence, and to date only 7 cases have been previously documented. Three patients are described, all of whom had a persistent discharging calculocutaneous sinus as a manifestation of the extruded calculus. The 3 cases had similar features of presentation with a perinephric abscess, a staghorn calculus within a nonfunctioning kidney, and a classic radiologic feature of a portion of calculus clearly distinct from the main bulk of the stone.
尿结石排出是一种罕见的情况，迄今为止仅有7例先前有文献记载。本文描述了3例患者，他们均有持续排石性皮肤窦道作为结石排出的表现。这3例病例具有相似的表现特征，包括肾周脓肿、无功能肾内的鹿角形结石以及结石的一部分与结石主体明显不同的典型影像学特征。
