ObjectiveTo explore the key genes and potential molecular mechanisms of liver and lymph node metastases relevant to duodenal neuroendocrine tumors (DNET). MethodsThe tissues of paracancerous duodenal epithelial, primary lesion, liver metastasis lesion, and lymph node metastasis lesion of a rare DNET accompanied by liver and lymph node metastases were sequenced and analyzed. The differentially expressed genes (DEGs) were screened for different tissues and the functional enrichment analysis was performed. ResultsThe tissues of paracancerous duodenal epithelial was used as the control, a total of 2 053 DEGs expressed only in the liver metastases lesion tissues and 742 DEGs expressed only in the lymph node metastases lesion tissues were screened out, and the top 5 genes expressed in the liver metastases lesion tissues were ORM1, C4BPA, AHSG, C9, and LBP, which in the lymph node metastases lesion tissues were ABHD12B, AC100850.1, HOXC9, AC083967.1, and HOXC8. Kyoto Encyclopedia of Genes and Genomes enrichment analysis found that the DEGs were mainly enriched in the phosphatidylinosiol 3 kinase / protein kinase B pathway, mitogen-activated protein kinase pathway, human papillomavirus infection, etc. ConclusionMultiple DEGs and pathways in metastatic lesions are found in this patient with DNET accompanied by liver metastasis and lymph node metastasis, which provides a new direction for treatment and prophylaxis of DNET.
Objective To investigate the surgical treatment and outcomes for duodenal injury in blunt abdominal trauma. Methods Clinical data of patients with traumatic duodenal injury who underwent surgical treatment in the First Affiliated Hospital of Xi’an Jiaotong University between December 2014 and August 2023 were retrospectively collected. The injury causes, diagnostic methods, surgical treatment methods, curative effect, and complications of patients were analyzed. Results A total of 8 patients were included. Among them, there were 7 males and 1 female. The age ranged from 17 to 66 years old, with an average of (44.4±19.3) years old. There were 5 cases of traffic accident injury, 2 cases of crush injury, and 1 case of falling injury. There was 1 case of duodenal bulb injury, 3 cases of descending part injury, 3 cases of horizontal part injury and 1 case of both descending and horizontal injuries. According to the scale of American Association for the Surgery of Trauma for duodenal trauma, there were 5 cases of grade Ⅱ injury, 2 cases of grade Ⅲ injury, and 1 case of grade Ⅳ injury. All patients underwent CT scan, of which 2 cases were directly diagnosed with duodenal injuries by CT, and the remaining cases diagnosed by intraoperative exploration. All patients underwent surgical treatment, including 4 cases of pancreaticoduodenectomy, 2 cases of duodenal repair and gastrojejunostomy, 1 case of duodenal repair plus jejunostomy, and 1 case of superior mesenteric vein repair, pancreatic necrotic tissue removal, and abdominal catheterization for smooth drainage. One patient developed duodenal fistula on the ninth day after surgery and received secondary surgery, 1 died of multiple organ failure during the resuscitation phase after damage control surgery, 3 developed intra-abdominal infection and cured by anti-infective treatment. Conclusions Early clinical manifestations of traumatic duodenal injuries are atypical, and imaging findings might not be clear. For trauma patients suspected of having duodenal injury, rigorous vital sign monitoring is necessary. Once vital signs stabilize, exploratory surgery should be actively considered to identify the location of the injury and perform appropriate surgical procedures. Adequate postoperative enteric decompression and drainage should be ensured.