Pathological Complete Response Achieved with Colorectal Cancer-Based Chemotherapy for Locally Recurrent Cecal Neuroendocrine Carcinoma after Surgery: A Case Report

Key Points

• Pathological complete response achieved after chemotherapy, indicating effective treatment of cecal neuroendocrine carcinoma.
• CEA levels were highlighted as a relevant biomarker for selecting chemotherapy regimens in this cancer type.
• Treatment involved a colorectal cancer-based chemotherapy regimen, showcasing an alternative approach to traditional protocols.
• Further work may consider these findings in broader clinical guidelines and treatment planning for rare cancers.