[Traumatic subcapsular renal lymphocele: an unusual form of Page kidney]

A 17-year-old boy who received a kick on his right back during the training of karate complained of gross hematuria. Computed tomography revealed slight bleeding at the lower pole of right kidney. His general condition was stable and the gross hematuria was improved immediately. After one month, CT revealed a large right subcapsular renal fluid accumulation with parenchymal compression and his blood pressure became elevated. We diagnosed as Page kidney associated with subcupsular renal lymphocele after trauma. Percutaneous drainage and laparoscopic cyst fenestration were performed. After the procedures, the fluid accumulation was recurred and the blood pressure became elevated again. We disclosed a case of Page kidney associated with subcupsular renal lymphocele and propose that careful management should be needed in a patient like our case.