[Metastasis of the right colon mucinous adenocarcinoma to aortocaval and retropancreatic space: case report and literature review]

Metastases of the right colon cancer to extra-regional lymph nodes are rarely observed. Available literature data cannot be a reliable guide to choose the optimal treatment strategy. Indeed, excision of extra-regional lymph nodes is a rare experience and its results are poorly represented. According to our clinical experience, surgical intervention following comprehensive examination may be radical in patients with right colon cancer if distant metastases are absent. Resection of extra-regional lymph nodes can be safely performed in these cases. We report a patient with the right colon cancer and lesion of extra-regional lymph nodes behind the pancreatic head, paracaval and paraaortic space, hepatoduodenal ligament. Standard laparoscopic right-sided hemicolectomy with D-3 lymph node dissection was accompanied by resection of a conglomerate of nodal metastases behind the pancreatic head and superficial resection of the pancreas. Extra-regional lymph node excision is a reasonable option for colon mucinous adenocarcinoma stage I-III. However, comprehensive preoperative examination is required. Technical difficulty of extra-regional lymph node excision it is not the reason for limitation of surgical intervention. However, safe and total resection requires an adequate surgical approach.