CASE HISTORY / CLINIC:
Patient who had undregone an enoral resection of a tumor in the floor of the mouth followed by interstitial radiotherapy. Small ulcer at the location of the resected tumor. Only inflammatory tissue can be found in biopsy. Continuous pain around the left cheek and jaw.


FINDINGS:
The right side of the lower alveolar bone appears prominently hyperintense in the T2-weighted image (upper left image).
This area appears hypointense in the contrast-enhanced T1 image without fat saturation (upper right image).
The area shows prominent hyperintensity again in the fat saturation T1 contrast-enhanced image.


DIAGNOSIS:
Osteomyelitis


DIFFERENTIAL DIAGNOSIS:
Osteoradionecrosis



Web resources:

1) Amersham Health
2) Medecoinfo
3) Chorus