Abstract:
AIM:To characterize the computed tomography (CT) and magnetic resonance imaging (MRI) findings of inflammatory myofibroblastic tumours (IMTs) of the maxillary sinus. MATERIALS AND METHODS:The imaging findings of eight patients with IMTs of the maxillary sinus were reviewed retrospectively. Of the eight patients, four patients underwent unenhanced and contrast-enhanced CT, and one patient underwent unenhanced CT only; three patients underwent unenhanced and contrast-enhanced MRI. RESULTS:Five cases of IMTs occurred in the left maxillary sinus, while three cases were right-sided. Four cases occupied the entire sinus, and the other four cases only partially occupied the sinus. Unenhanced CT images showed heterogeneous masses in four cases and a homogeneous mass in one case. One of the tumours showed some areas of calcification. T1-weighted MRI images showed isointense lesions. T2-weighted images showed mixed isointense and mild hyperintense lesions. All cases showed bone destruction and had infiltrated into the nasal fossa, orbit, infratemporal fossa, and other adjacent tissues. Seven cases showed mild to moderate heterogeneous enhancement on contrast-enhanced CT or T1-weighted MRI images. CONCLUSION:IMTs of the maxillary sinus can be characterized as a soft-tissue mass with bony destruction and infiltration of the adjacent tissues, with mild to moderate enhancement after the injection of contrast medium. CT and MRI can help to diagnose IMTs, determine the extent of the lesion and its relationship with adjacent tissues, and thus facilitate the prediction of surgical resectability.
journal_name
Clin Radioljournal_title
Clinical radiologyauthors
Yuan XP,Li CX,Cao Y,Singh S,Zhong Rdoi
10.1016/j.crad.2012.08.002subject
Has Abstractpub_date
2012-12-01 00:00:00pages
e53-7issue
12eissn
0009-9260issn
1365-229Xpii
S0009-9260(12)00424-2journal_volume
67pub_type
杂志文章abstract::We describe 27 cases of bone tumours or tumour-like lesions where there was spontaneous regression. The follow-up period was 2.8-16.7 years (average, 7.0 years). Fourteen of these cases were no longer visible on plain radiographs. Histological diagnosis included exostosis, eosinophilic granuloma, fibrous dysplasia, fi...
journal_title:Clinical radiology
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journal_title:Clinical radiology
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pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 杂志文章
doi:10.1016/s0009-9260(89)80023-6
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pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Clinical radiology
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journal_title:Clinical radiology
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pub_type: 杂志文章
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