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The pectoralis major receives dual motor innervation by the medial pectoral nerve and the lateral pectoral nerve, also known as the lateral anterior thoracic nerve. The sternal head receives innervation from the C7, C8 and T1 nerve roots, via the lower trunk of the brachial plexus and the medial pectoral nerve .
The diagnosis may be supported by nerve conduction studies and medical imaging. [1] TOS is difficult to diagnose and there are many potential differential diagnoses as well as other diseases that are often co-occurrent with TOS. [5] Initial treatment for the neurogenic type is with exercises to strengthen the chest muscles and improve posture. [1]
Pectoralis minor syndrome (PMS) is a condition related to thoracic outlet syndrome (TOS) that results from the pectoralis minor muscle being too tight. [1] PMS results from the brachial plexus being compressed under the pectoralis minor [2] while TOS involves compression of the bundle above the clavicle. In most patients, the nerves are ...
The treatment is purely cosmetic and does not restore the patient's imbalanced upper body strength. [citation needed] The Poland syndrome malformations are morphological, so correction by custom implant is the first-line treatment. [13] This technique allows a wide variety of patients to be treated with good outcomes.
Symptoms of RSP will lead to upper back stiffness, neck stiffness and shoulder stiffness. [1] It can be diagnosed by several tests, including physical tests [5] and imaging tests. [5] To prevent RSP from worsening, maintaining a proper posture, [citation needed] doing regular exercise, [6] and undergoing therapeutic treatments [7] could be ...
Radical mastectomy is a surgical procedure that treats breast cancer by removing the breast and its underlying chest muscle (including pectoralis major and pectoralis minor), and lymph nodes of the axilla (armpit). Breast cancer is the most common cancer among women.
The medial pectoral nerve (also known as the medial anterior thoracic nerve) is (typically) a branch of the medial cord of the brachial plexus and is derived from spinal nerve roots C8-T1. It provides motor innervation to the pectoralis minor muscle , and the lower half (sternal part) of the pectoralis major muscle .
Pectoralis minor is a thin, triangular muscle located beneath the pectoralis major. It attaches to the ribs, and serves to stabilize the scapula, the large bone of the shoulder. The pectoral fascia is a thin layer of tissue over the pectoralis major, extending toward the latissimus dorsi muscle on the back. Along with the pectoralis major and ...