Impingement Syndrome: Or something else? Differential Diagnosis

Musculoskeletal system and connective tissue (M00-M99).

  • Articulosynovitis (chronic inflammation in the joints).
  • Biceps tendon rupture – generic term for the rupture of at least one tendon of the biceps brachii muscle.A distinction is made between proximal biceps tendon rupture (in the shoulder region) anddistal rupture (in the elbow region).
  • Biceps tendinitis (inflammation of the long, upper tendon of the biceps muscle).
  • Bursitis (bursitis) in rheumatoid arthritis (pcP).
  • Diseases of the cervical spine with pseudoradicular pain pattern (nonspecific, localized back pain, which, among other things, radiate into the arm) and root compression syndromes (mechanical irritation of a nerve root in the area of the spine); here especially the root C5 with radiation into the deltoid muscle (triangular skeletal muscle located above the shoulder joint; it serves to lift the upper arm)
  • Malhealed tuberculum majus (large humeral tuberosity).
  • Frozen shoulder (Syn.: Periarthritis humeroscapularis, painfulSchouldertersteife and Duplay syndrome) – Adhesive capsulitis; extensive, painful suspension of the mobility of the shoulder(painful frozen shoulder).
  • Contracture (functional and movement restriction) of the dorsal (“affecting the back”) capsule.
  • Neuralgic shoulder amyotrophy (acute inflammation of the brachial plexus associated with severe pain and paralysis of the shoulder and arm muscles).
  • Osteophytes (bone neoplasms) in the area of the acromioclavicular joint (acromioclavicular joint).
  • Pseudarthrosis (disturbed bone fracture healing with the formation of a false joint).
  • Shoulder pain caused by changes in the spine (vertebragen), vessels (vascular) or nerves (neurogenic): see if necessary under Omalgia (shoulder pain / differential diagnoses).
  • Tendinosis calcarea (calcified shoulder) – calcification mostly in the area of the attachment tendon of the supraspinatus muscle; prevalence (disease frequency): about 10% in asymptomatic patients / about 50% becomes symptomatic; often spontaneously regressive (regressing); more men thanwomen; frequency of bilateral: 8-40%.

Further

  • Iatrogenic (“physician-generated”) – e.g., due to inserted osteosynthesis material (material, mostly metal, which is used in the surgical treatment of bone fractures and other bone injuries with implants).