Introduction: Diseases of the Para nasal sinuses include wide spectrum ranging from inflammatory conditions to neoplasms. CT has replaced conventional radiographs as imaging modality of choice for assessment of Para-nasal sinus diseases. Material and Method: This was the prospective study carried out on 50 symptomatic sinus diseased patients who underwent CT imaging of paranasal sinuses in both coronal and axial sections in Department of Radiodiagnosis, NSCB Medical College and hospital, Jabalpur from November 2014 to October 2015. Results: Most patients were in the 3 rd and 5 th decades of their life with male : female ratio of 4:1.The common complaint with which they presented was headache followed by nasal obstruction. Sensitivity and specificity for detection of mucosal abnormality was very good. On evaluating patients with CT PNS, the most common sinus involved was maxillary sinus. Commonest pattern of inflammation was sinonasal polyposis followed by osteomeatal unit pattern. Conclusion: To conclude, this study proved good result of CT evaluation of diseases of paranasal sinuses due to high sensitivity and specificity to diagnosis and the planning of management in paranasal sinuses diseases.