Physical Medicine and Rehabilitation for Lateral Epicondylitis Workup

Updated: Sep 16, 2019
  • Author: John W Hawkins, DO; Chief Editor: Stephen Kishner, MD, MHA  more...
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Workup

Laboratory Studies

Laboratory studies generally are not indicated for the diagnosis of lateral epicondylitis.

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Imaging Studies

Imaging studies usually are not necessary, but tendinopathies can be visualized with magnetic resonance imaging (MRI) and with diagnostic ultrasonography. [10, 11]

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Other Tests

Electrodiagnostic studies may help to determine whether other causes of lateral elbow pain, such as cervical radiculopathy or posterior interosseous nerve palsy, are present.

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Histologic Findings

Findings can include collagen disorientation, collagen disorganization, fiber separation by increased mucinoid substance, an increased prominence of cells and vascular spaces (with or without neovascularization), and focal necrosis or calcification. Superimposed evidence of a tear, including fibroblastic proliferation, hemorrhage, and organizing granulation tissue, may be revealed.

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