病例:女,28岁,因左侧腰背部酸痛3月余入院。病程中无放射痛,无发热、乏力、纳差等。体检无血压升高、无贫血、黄疸,腹平软,未及明显肿块,无压痛,无肾区叩击痛;各项实验室指标包括血常规、肝肾功能、血糖、肿瘤标志物均正 Case: Female, 28 years old, due to left lower back pain more than 3 months admitted to hospital. No pain during the course of radiation, no fever, fatigue, anorexia and so on. Physical examination without blood pressure, no anemia, jaundice, abdominal soft, no obvious mass, no tenderness, no perineural area percussion pain; various laboratory indicators including blood, liver and kidney function, blood glucose, tumor markers are positive