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Mandibular condyle

The mandibular condyle is the rounded, articulating end of the mandible that forms the temporomandibular joint (TMJ) with the temporal bone of the skull. This structure plays a vital role in jaw movement, mastication, and overall TMJ function. Its assessment is crucial in evaluating joint pathology, trauma, degenerative changes, and other temporomandibular disorders. MRI is the imaging modality of choice for soft tissue and bone marrow evaluation of the mandibular condyle, providing high-resolution, multiplanar images with various sequences.

Synonyms:

  • Condylar head

  • Mandibular head

  • Condyloid process

  • Mandibular condylar process

  • Articular condyle (mandible)

MRI Appearance of the Mandibular Condyle

• Proton Density (PD) Sequence:

  • The mandibular condyle shows intermediate to low signal intensity due to its high bone density.

  • The cortical bone appears as a thin, dark (hypointense) rim.

  • The subchondral bone marrow may show a variable, generally intermediate signal intensity.

  • Useful for delineating the condylar outline, articular cartilage, and adjacent soft tissues.

• Short Tau Inversion Recovery (STIR):

  • The cortical bone remains hypointense (dark).

  • Bone marrow edema or inflammation within the condyle appears as bright (hyperintense) signal.

  • Highly sensitive for detecting early marrow changes, inflammation, or trauma.

  • Helps identify pathologic changes such as osteonecrosis, contusions, or joint effusion.

• T1-Weighted Sequence:

  • The cortical bone is seen as a very low signal intensity (dark) border.

  • The marrow space within the condyle is hyperintense (bright) due to fat content.

  • Useful for assessing marrow integrity, and detecting marrow replacement (tumor, infection).

  • Provides excellent anatomical detail of the mandibular condyle and its relation to the articular disk.

MRI images

Mandibular condyle mri

CT VRT 3D image

Mandibular condyle 3D

CT image

Mandibular condyle CT anatomy image -img-00000-00000