Objective: To investigate the imaging features, diagnosis and treatment of secondary subcapsular effusion after percutaneous nephrolithotomy. Methods: From September 2014 to April 2018, 14 patients with secondary subcapsular effusion after percutaneous nephrolithotomy in our hospital were analyzed retrospectively in terms of imaging data and clinical treatment. Results: All the patients were treated with one-stage ultrasound-guided subcapsular puncture and drainage, 4 cases were cured after simple drainage, 2 cases were cured after infusing anhydrous alcohol sclerosing agent under the renal capsule, and the other 8 cases were treated with second-stage percutaneous nephroscopic surgery. Renal capsular and pyelonephric calyx were opened, pyelostomy tube and subcapsular drainage tube were indwelled, and then removed subcapsular drainage tube and fistula tube were removed successively. The curative effect of follow-up treatment was followed up. In the patients with subcapsular effusion, the renal shape was enlarged, showing fusiform, triangular or crescent-shaped anechoic areas. Neither anterograde nor retrograde angiography could find that the subcapsular capsule was connected with the renal pelvis and calyx.14 patients were cured by puncture drainage, anhydrous alcohol and other sclerosing agents, and the second stage percutaneous nephroscopic surgery was performed. Follow-up for half a year showed no recurrence. Conclusion: The secondary subcapsular effusion after percutaneous nephrolithotomy can be cured by simple drainage, absolute alcohol injection and secondary percutaneous nephrolithotomy. |
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