A patient with intermittent right lumbar pain for more than one month and aggravating for one week was reported. The right laparoscopic radical nephrectomy was performed, and fibrosarcoma of the right kidney was diagnosed. The patient refused further radiotherapy or chemotherapy and was discharged on the 11th after surgery. One year after operation, the patient underwent chest CT, and subdural tumor of right lobe of liver was detected. A surgery was performed in another hospital, and liver metastasis from right renal fibrosarcoma was diagnosed. He was alive four months after operation.

The segmental testicular infarction rate is extremely low, usually showing acute testicular pain, which needs to be distinguished from testicular tumor, testicular torsion, etc. Only a few cases were reported. In this study, two cases were presented. Case one, a 13-year-old boy, was admitted to hospital due to right testicular swelling and pain for 3 days. Presenting with vomiting once on May 5, 2017.He underwent right scrotum exploration and testicular fixation. Testicular pain was disappeared and discharged on the five days operation. There was no obvious abnormality in color doppler ultrasound after one year after operation. Another patient, a 26-year-old man, was admitted to hospital due to left testicular swelling and pain for 6 on March 15, 2018. He was treated with Xue Saitong, natra heparin calcium and Maizhiling tablets. After seven days of treatment, the testicular pain improved and were discharged. One month after discharge, the patient had no pain or discomfort, and the color Doppler ultrasound showed that the left subtesticular polar-like low-isoecho, and a small amount of star-like blood flow signal around.