Arm and hand pain: Pectoralis minor entrapment
Entrapment by the pectoralis minor muscle can block blood and nerve flow to the arms causing pain, tingling, numbness (dysesthesia) and unusual sensations (parasthesias). The pectoralis minor’s very strong tendon overlies the brachial plexus of nerves and the axillary artery that make up the neurovascular bundle that serves the arm. When the muscle is tight […]