Anti-angiogenesis treatment in a patient with appendix metastasis of small cell lung cancer: A case report

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Rationale:Small-cell lung cancer (SCLC) is a common pathological type of lung cancer, but appendiceal metastasis of SCLC was rare. At present, clinical studies on the maintenance therapy of SCLC have not reached a significant conclusion.Patient concerns:We reported on a 52-year-old man who diagnosed as extensive stage SCLC with abdominal pain for 2 months, aggravated for 2 days.Diagnoses:The patient was diagnosed with extensive-stage SCLC, relapsed with appendix metastasis after treatment by emergency abdominal surgery.Interventions:The patient received systemic treatments, including surgery, bevacizumab in combination with chemotherapy and bevacizumab alone was continued as maintenance therapy.Outcomes:The patient had an overall survival would more than 23 months, and he gained another 8 months of progression-free survival after first-line radiochemotherapy.Lessons:Although SCLC appendix metastasis is rare, continuous anti-angiogenic therapy combined with bevacizumab maintenance therapy after surgical treatment can prolong survival.

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