Interpectoral nodes

Looks like

Small lymph nodes between the pectoralis major and minor (Rotter's nodes).

What it does

Filter some lymph from the breast and pass it to the apical axillary nodes.

Keeping it well

A route for breast cancer spread that can be missed in surgery; relevant in breast cancer staging.

Related conditions

• Breast cancer
• Cat-scratch disease
• Frozen shoulder (adhesive capsulitis)
• Male breast cancer
• Polymyalgia rheumatica
• Shoulder dislocation