Objective:To summarize the clinical characteristics of acute renal infarction so as to enhance the level of diagnosis.Method:We analyzed the data of three cases including two males and one female retrospectively.All patients suffered from progressive abdominal pain and severe back pain for four hours to two days were admitted to the emergency room.The laboratory data,abdominal color Doppler ultrasonography and further abdominal enhanced CT scan were taken.Result:The value of lactic dehydrogenase(LDH)increas...