Complete response of lung metastases from rectal cancer to combination first-line therapy of S-1 and irinotecan plus bevacizumab: A case report and review of the literature

This report presents the case of a 72-year-old male who had undergone abdominoperineal resection following a diagnosis of lower rectal cancer with multiple lung metastases. Pathologically, the resected specimen exhibited advanced rectal cancer with regional lymphoid metastases and was classified as...

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