Temporomandibular joint effusion

Dr Henry Knipe and Assoc Prof Frank Gaillard et al.

Temporomandibular joint (TMJ) effusions are unusual in asymptomatic patients, and thus should trigger a careful search for underlying pathology. It usually precedes osteoarthritis of the TMJ. Effusions are seen in:

Radiographic features


On PD / T2 weighted sequences, both synovial proliferation and effusions can be high on signal. If necessary they two can be distinguished by administering gadolinium.

Article information

rID: 5523
Section: Gamuts
Synonyms or Alternate Spellings:
  • TMJ effusion

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Cases and figures

  • Case 1: tiny effusion
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  • Case 2: minor effusion
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  • Case 3: large effusion
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