In patients with breast cancer, chest wall involvement means involvement of any one of the following structures except
Chest wall involvement means involvement of ribs, intercostal muscles or serratus anterior as chest wall is formed by these structures not the pectoral is major Ref: schwaz's principle of surgery 10th edition Pgno :452
Serratus anterior
Pectoralis Major
Intercostal Muscles
Ribs
Endocrinology and breast