Periscapular Pain Diagnosis and Management

Musculoskeletal and Referred Pain Causes

The American College of Physicians suggests that rotator cuff disease is predominant in patients over 35-40 years, with anterior shoulder pain suggesting rotator cuff or biceps tendon pathology that may radiate to the periscapular region 1, 2
Acromioclavicular joint arthritis is common in older patients and can cause referred periscapular discomfort 2
Glenohumeral joint pathology, including labral tears and instability, may present with periscapular pain, particularly in younger patients under 35 years 2
Cervical radiculopathy from herniated discs or osteophytes causes neuropathic pain radiating from the neck into the shoulder and periscapular region, characterized by numbness, tingling, weakness, or radiation following specific cervical nerve root distributions (C5, C6, C7, or C8) 1
Documenting the exact radiation pattern can help determine if pain follows a specific dermatomal distribution 1
Testing for regional sensory changes, allodynia, or hyperpathia can suggest a neuropathic pain component 1

Cardiac ischemia can present as left periscapular pain, particularly in patients with risk factors for coronary disease 3
Pancreatitis may cause referred pain to the periscapular region 4
Biliary disease occasionally refers pain to the right periscapular area 5
Primary or metastatic cancer can present as progressive periscapular pain, with a history of cancer increasing the probability from 0.7% to 9% 6
Unexplained weight loss, failure to improve after 1 month, and age >50 years are additional cancer indicators 6
Aortic dissection may present with interscapular pain and should be considered in patients with hypertension or connective tissue disorders 3

The initial imaging should be guided by clinical suspicion, with plain radiographs of the cervical spine and shoulder being appropriate first-line imaging to assess for gross structural abnormalities, degenerative changes, or alignment issues 1
MRI of the cervical spine without contrast is the preferred initial advanced imaging when the clinical examination supports radiculopathy, as it directly visualizes disc herniations, osteophytes, and nerve root compression 1
Shoulder MRI is recommended only if the physical examination suggests concurrent rotator cuff pathology 1
Electrodiagnostic testing (EMG/NCS) should be considered if imaging is negative or equivocal, with sensitivity over 80% and specificity of 95% for confirming nerve compression and localizing the level 1
Pregabalin 300-600 mg daily in divided doses is recommended for confirmed cervical radiculopathy with neuropathic features 1
Alternative agents, such as gabapentin or duloxetine, can be used for nerve-stabilizing effects 1
Cervical spine surgery is considered for radiculopathy with persistent symptoms at 12 weeks unresponsive to conservative care 6