LAUSR

Rationale: Renal clear cell sarcoma is a rare and highly invasive malignant renal tumor that easily relapses after treatment. Recurrent recurrent clear cell carcinoma (CCSK) responds poorly to chemotherapy and has no established standardized treatment, and need to be explored potentially useful treatments. Patient concerns: A 18-years-old patient with renal clear cell sarcoma recurrence after open radical nephrectomy. Diagnosis: Recurrent clear cell sarcoma. Interventions: After chemotherapy alone failed, the patient received 6 courses of anlotinib combined with chemotherapy. The tumor had significantly reduced in size and the recurrent tumor and part of the liver were resected. Outcomes: No tumor recurrence or metastasis was detected during the follow-up 8 months after the operation. Lessons: This is the first report describing the use of anlotinib in treating CCSK. We believe that anlotinib combined with chemotherapy may be a useful treatment option for patients with recurrent CCSK.