Lymph node dissection removes lymph nodes from an area where cancer has spread or is likely to spread. Regional dissection takes the nodes that drain a specific organ, as in armpit, neck or groin surgery. Radical dissection removes a more extensive set of nodes.

Examining the nodes shows the stage of cancer and helps decide on further treatment. Drains are often placed after surgery, and physiotherapy helps maintain movement.

How the Procedure Can Help

It removes cancer-bearing nodes and provides accurate staging, improving local control.

Risks and Considerations

Possible effects include limb swelling (lymphoedema), fluid collection, numbness, wound infection, and, in the neck, shoulder weakness due to nerve injury.