EURORAD ESR

Case 1645

Traumatic ankylosis of the right temporomandibular joint: demonstration by 3D spiral CT

Author(s)
P. Polat, O. Onbas, F. Alper, M. Kantarci
 
Patient
female, 8 year(s)
 
 
  • Figure 1
    Sagittal CT appearance of the right temporomandibular joint
     

    Closed mouth sagittal CT section through the right temporomandibular joint shows marked irregularity at the cortical surface of both mandible and fossa temporomandibularis. Note also the decreased joint space.

     
    Area of Interest: unknown; Imaging Technique: Sagittal CT appearance of the right temporomandibular joint;

    Open mouth sagittal CT section shows no movement at the right temporomandibular joint.

     
    Area of Interest: unknown; Imaging Technique: Sagittal CT appearance of the right temporomandibular joint;
     
     
  • Figure 2
    3D spiral CT appearances of the temporomandibular joints
     

    3D spiral CT section in the caudo-cranial plane shows both temporomandibular joints in the same image. There is marked bony overgrowth and bony ankylosis of the right temporomandibular joint. The left...

     
    Area of Interest: unknown; Imaging Technique: 3D spiral CT appearances of the temporomandibular joints;

    3D spiral CT section through the right temporomandibular joint, with 30° rotation to the vertical plane and 10° rotation to the transverse plane, provides a better view of the bony ankylosis. There is a normal...

     
    Area of Interest: unknown; Imaging Technique: 3D spiral CT appearances of the temporomandibular joints;

    3D spiral CT section through the left temporomandibular joint, with 30° rotation to the vertical plane and 10° rotation to the transverse plane, shows normal appearances

     
    Area of Interest: unknown; Imaging Technique: 3D spiral CT appearances of the temporomandibular joints;
     
     
Closed mouth sagittal CT section through the right temporomandibular joint shows marked irregularity at the cortical surface of both mandible and fossa temporomandibularis. Note also the decreased joint space.
 
Open mouth sagittal CT section shows no movement at the right temporomandibular joint.
 
3D spiral CT section in the caudo-cranial plane shows both temporomandibular joints in the same image. There is marked bony overgrowth and bony ankylosis of the right temporomandibular joint. The left temporomandibular joint is normal
 
3D spiral CT section through the right temporomandibular joint, with 30° rotation to the vertical plane and 10° rotation to the transverse plane, provides a better view of the bony ankylosis. There is a normal relation between the coronoid process and the zygomatic arch.
 
3D spiral CT section through the left temporomandibular joint, with 30° rotation to the vertical plane and 10° rotation to the transverse plane, shows normal appearances
 
 
 
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