Differential Diagnosis for Frozen Shoulder
- Single most likely diagnosis
- Adhesive capsulitis: This is the most common cause of frozen shoulder, characterized by inflammation and scarring of the joint capsule, leading to restricted mobility and pain.
- Other Likely diagnoses
- Rotator cuff tendinitis: Inflammation of the tendons surrounding the shoulder joint can cause pain and limited mobility, mimicking frozen shoulder.
- Bursitis: Inflammation of the fluid-filled sacs (bursae) that cushion the joints can cause pain and stiffness in the shoulder.
- Osteoarthritis: Wear and tear on the joint can cause pain, stiffness, and limited mobility, similar to frozen shoulder.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Fracture: A fracture of the humerus or scapula can cause severe pain and limited mobility, and if missed, can lead to further complications.
- Septic arthritis: A bacterial infection of the joint can cause severe pain, swelling, and limited mobility, and if left untreated, can lead to serious complications.
- Tumor: A tumor in the shoulder region can cause pain, stiffness, and limited mobility, and if missed, can lead to delayed diagnosis and treatment.
- Rare diagnoses
- Rheumatoid arthritis: An autoimmune disorder that can cause inflammation and stiffness in the joints, including the shoulder.
- Hemorrhagic shoulder: Bleeding into the joint or surrounding tissues can cause pain, swelling, and limited mobility.
- Parsonage-Turner syndrome: A rare condition characterized by sudden onset of shoulder pain and weakness, often accompanied by limited mobility.