The Role of Computed Tomography in Evaluation of Nasal Polyposis

Plain film radiography was once the imaging modality of choice for assessment of sinonasal cavity. But they are of no value in the diagnosis of nasal polyps although they may confirm opacification of the sinuses. However, these standard views provide only limited display of Plain radiographs have now been replaced by CT (Computed Tomography) for the evaluation of sinonasal pathology. CT provides excellent bone detail and accurate soft tissue details. CT is used routinely to evaluate thee extent of the inflammatory disease and to assess important anatomical landmarks like anterior ethmoid cells, middle turbinate, osteomeatal complex, upper two thirds of nasal cavity and frontal recess area which plays key roles in the pathogenesis of sinonasal polyps. CT is universally accepted as the gold standard investigation for anatomical evaluation of paranasal sinus disease.