A Case of Duodenal Papillary Mixed Neuroendocrine Non-Neuroendocrine Neoplasm Treated with Pancreaticoduodenectomy

Key Points

• The study aims to report a rare case of mixed neuroendocrine non-neuroendocrine neoplasm affecting the duodenum and its treatment outcomes.
• Reported a clinical case of a 59-year-old male with a duodenal papillary neoplasm.
• Utilized imaging techniques to assess metastasis before surgery.
• Performed pancreaticoduodenectomy with lymphadenectomy for treatment.
• Conducted pathological examination of resected specimens to confirm diagnosis.
• Diagnosis confirmed as mixed neuroendocrine non-neuroendocrine neoplasm after pathological analysis.
• Lymph node metastasis identified in the neuroendocrine carcinoma component.
• Post-operative follow-up showed no recurrence after 10 months without adjuvant chemotherapy.