Sentinel Lymph Node Biopsy of the Axilla

What is Sentinel Lymph Node Biopsy?

Sentinel lymph node biopsy is an operation to remove the first lymph gland (s) from under the armpit (axilla) which are responsible for draining the area of the breast involved by a tumour. This gland (s) is then analysed by a pathologist to determine whether there are tumour cells present. Sentinel node biopsy has now become standard practice which enables us to stage the axilla during surgical treatment of breast cancer.

Sentinel Lymph Node Biopsy of the Axilla icon

Sentinel Lymph Node Biopsy of the Axilla

File type: application/pdf Review date: September 2026