In Patey's procedure
Patey's operation is total mastectomy with clearence of all levels of lymph nodes and removal pectoralis minor muscle.It is enblock dissection of breast and axila. Nerve to serratus anterior,nerve to lattismus dorsi,axillary vein ,cephalic vein and pectoarlis major muscles are preserved So Patey 's procedure include removal of pectoralis minor with preservation of paectoralis major muscle. SRB's Manual of Surgery.Edition -5. Pg no:547.
Removal of both pectoralis major & minor
Removal of pectoralis minor and preservation of pectoralis major
Pectoralis minor is divided
Both (Major & Minor) are preserved
Endocrinology and breast