Authors:
K. Surlan Popovic, A. Sirnik, M. Kocar; Ljubljana/SI
DOI:
10.1594/ecr2011/C-0558
Results
The degree of bone involvment on CT scan showed osteolytic and sclerotic lesions with cortical bone destruction in all patients,
followed by periostal bone proliferation in 7 patients.
The sclerotic change enchroached on the mandibular (inferior alveolar) canal in 4 patients and 1 patient had sequestration of mandibula.
On gadolinium- enhanced MRI of the jaw the intensity changes of the cortical and subcortical bone structures in all pateints were recorded.
The osteonecrosis was identified as delimited focal lesions with reduction of the signal on T1- weighted imaging and T2- weighted imaging.
In the regions of the open wound low T1 signal correlated with high T2-weighted signal.
However in the regions without open wound there was no bright signal from the lession on the T2-wighted images and enhancement after the administration of paramagnetic contrast material was significantly lower compared to the lesions with bright T2-weighted signal. All the patients had soft-tissue involvement with enhancement in orbicular,
buccinator muscle of the mouth or masticator space and adenopathy in submandibular and jugular digastric chain.
Maxillary sinus lesions were recorded in 2 patients.