what causes arm and shoulder pain
Top of Shoulder: The most common cause of pain in the top of the shoulder is an abnormal AC joint. Problems of the AC joint include AC arthritis, distal clavicle osteolysis, and shoulder separations. Timing of Pain. Constant pain: Most shoulder problems tend to be bothersome with activity.
Article Sections. Patients with acute brachial plexus neuritis are often misdiagnosed as having cervical radiculopathy. Acute brachial plexus neuritis is an uncommon disorder characterized by severe shoulder and upper arm pain followed by marked upper arm weakness. The temporal profile of pain preceding weakness is important in establishing a prompt diagnosis and differentiating acute brachial plexus neuritis from cervical radiculopathy.