The Arc of Riolan artery may serve as the only pathway for lymphatic metastasis in advanced splenic flexure cancer.

Key Points

• Identify the Arc of Riolan artery as a potential sole pathway for lymphatic spread in advanced splenic flexure cancer.
• Analysis of anatomical pathways associated with splenic flexure cancer.
• Identification of lymphatic drainage routes related to the Arc of Riolan.
• Recommendations for surgical interventions involving nodal dissection along the artery.
• The Arc of Riolan may serve as a critical pathway for metastasis in certain cases of splenic flexure cancer.
• Careful nodal dissection along this vessel could improve oncologic outcomes.