Incomplete resection can occur due to several factors:
Tumor Location: Tumors situated near critical organs or blood vessels may limit the extent of surgical resection to avoid damaging essential structures. Tumor Size: Large tumors might be difficult to remove entirely in a single operation. Tumor Infiltration: Some cancers invade surrounding tissues, making it challenging for surgeons to remove all cancerous cells. Surgeon Experience: The skill and experience of the surgical team can also play a role in achieving complete resection.