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Evaluating the characteristic of paranasal sinus mucocele in computed tomography
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Abstract
SUMMARY
Objective: Our aim was to describe computed tomography image characteristic of paranasal sinus mucoccele.
Method: A retrospective and prospective, axial-descriptive study in paranasal sinus mucoccele patients who were treated at National Otorhinorarynology from December 2016 to July 2019.
Results: 32 patients were enrolled. Mean age was 52.9 (22-83) with M/F=1. Involved sinus distribution including 37.5% frontal-ethmoid, 31.3% frontal, 9.4% ethmoid, 6.3% ethmoid-maxillary, 6.3% sphenoid and 9.4% maxillary sinus. 96.9% tumors were hyperdense or isodense
(compared to brain tissue) in pre-contrast CT Scanner. In the postcontrast image: 84.4% of tumors did not marked enhance while another 15.6% had rim enhance which could be explained due to patients clinical acute symtoms of infection. In characteristic, 87.5% tumors had erosion of sinus bone (65.6% lamina papiracea, 25% orbital roof and 25% ethmoidal roof). Regarding to the spread of mucocele: 68.75% tumors had intraorbital extension while 15.6% had intracranial extension. No record of nerve or cavernous sinus invasions.
Conclusion: A sinus computed tomography scan with contrast
material was highly valuable in diagnosis of paranasal sinus mucocele
and contribute to the planning of surgery.
Article Details
Keywords
paranasal sinus mucocele, computed tomography
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