 Good morning everybody. My name is Dr. Pooja Supre, second year resident from the Department of Radio Diagnosis in Vithal Rao, Dr. Vithal Rao, VK Patil Medical College in Hospital Amarnagar. The title of my paper presentation is Prospective Study of the Evaluation of the Paranazole Sinus Disease by the CT scan. The aims and objectives of the study is to evaluate the role of the CT in diagnosis of Sinonazole diseases to characterize the lesions and to correlate its findings histopathologically and clinically. In the initial reduction, Sinonazole diseases include vast spectrum of the diseases ranging from inflammatory conditions to the neoplasm, both benign and malignant. Clean radiographs are inadequate for the diagnosis for the non-neoplastic and neoplastic lesions. Imaging of PNS has now been replaced by the completed tomography. CT has replaced the radiography as the imaging modality of choice for the assessment of the PNS diseases. CT has become the investigation of choice for the radiological diagnosis of the nasal and sinus diseases. It shows the air spaces or pacification of the spines, the sinuses, fine structural architecture of the bony anatomy. Excellent details are available regarding the anatomical variants and pathology of the PNS. For confirmation, histopathological diagnosis correlation is required. CT is the investigation of choice for pre-operative evaluation of the nasal cavity and paranazole sinuses and is the gold standard for the description of the inflammatory sinus diseases, which is now mandatory to evaluate the PNS before the FES surgery. CT determines the distribution and extents of the disease and detects those anatomical variations like septal deviations per formation concavulosa, curves of the medial medial turbinate. That may place and patient at increased risk of interoperative and postoperative FES complications. With the advent of the multi-detector CT, the potential to obtain the high-quality MPR imaging in both coronal and sagittal plane for obtaining the axial CT data. The direct coronal scanning and sagittal reconstruction imaging in the space-occupying legions have been revolutionized. And the accurate delineation of the diseases and microanatomical locals provide a reliable pre-operative road map to the endoscopic sinus surgery. Materials and methods. This is the prospective study was conducted on 60 patients. Permission from the medical committee was obtained. The source and the method of the data collection is was 60 patients who were referred from the department of the ENT to the radiology department at Dr. Vithalra Vicky Patil Medical College and Hospital and Madnagar from the period of 1st May 23 to 31 July 2023. After taking the detailed history and considering the symptomatology of the width of with clinically suspected paranesal sinus diseases. Inclusion criteria was the patient presenting with the history of headache, nasal obstruction, nasal discharge and osmia, post-natal discharge and epistaxis. Exclusion criteria was with the patients with the maxillofacial and head trauma, pregnant women. CT of the paranesal sinuses are done in both axial and coronal CT scans study. The CT findings were recorded in proforma and then patients were sent for the histocathological sampling and then the results were correlated. Results. A total number of 60 patients satisfying the inclusion criteria were included in the study. A descriptive comparative analysis of the imaging findings were compared and the results were obtained. Majority of the cases were found in the age group of 21 to 30 and 11 to 20 years of the age. Incidents of the paranesal sinus diseases was more in the male patients as compared to the female patients. The male to female ratio in our studies, one is to two ratio. Predominant symptoms in the study group were headache in 35 patients, followed by decreasing order, nasal obstruction and then facial pain. This is the table showing age and sex-wise distribution of the patient in which we can see there is there most patients of the paranesal sinus disease affected are in the second and third decade of the life while male patients are predominantly affected. This is an pie diagram showing a sinuses disease. The most common sinus disease is maxillate sinus, which is seen in the 15 number of the cases, followed by the ethmoid sinus, five number of cases frontal, in three cases and spinoid in two cases. This is in bar diagram showing associated anatomical variants. 25 cases out of 60 cases were associated with the anatomical variants, most common being hypertrophic sinus followed by the septal deviation, conca bilosa, paradoxical middle turbinate and pneumatized crystal galle. These are the CT findings in osteomyatol unit association. Out of 60 cases, 30 cases that is 50% of the cases are associated with osteomyatol unit involvement. Most commonly involved are on the left side that is 12 number of cases and eight cases, there is bilateral osteomyatol unit involvement. Then CT diagnosis. On the CT diagnosis, most common condition which is diagnosed on the PNS CT is chronic sinusitis, which is seen in the 40 number of the cases that is 66% of the cases, which is followed by the polyp, which is seen in the 15 number of cases followed by fungal sinusitis in two mucosilin one case, angiofibromine one and malignant condition in one case. Then histopathological findings, histopathological findings which are same as that of CT in 55 number of the cases, that is majority 92% of the cases have same histopathological finding as that of CT and five cases of different findings from the CT. These are these are the actual and coronal images of the PNS showing there is near complete pacification seen involving bilateral maxillary sinus. There is partial pacification involving the ethomoid suggesting a characteristic feature of the sinusitis. This is another image showing the polyp in the right maxillary sinus. There is minimal mucosal thickening in the left maxillary sinus and mucosal hypertrophy, overlying bilateral inferior nasal turbine. In the first in this image in the first image we can see there is a deviated nasal symptom towards the right side. There is concavulosa on the left middle turbine and there there is in the second image there is a pacification of the frontal sinus and in the last image we can see there is an opacification of the ethomoid sinus. In this image, this is a contrast enhanced CT image showing an ill demarcated heterogenously enhancing bulky mass with extensive bony destruction favoring the malignant etiology discussion. Recently CT has become the best diagnostic modality for evaluation of the nasal cavity paranozle sinus diseases for demonstrating a various synonezle diseases. This was the prospective correlational clinical study carried out on the 60 symptomatic sinus disease patients who had undergone the CT imaging for the PNS in both the coronal and axial sections. In this study, most patients were in second and third decade of the life which was similar to the study done by BEAST. Most common sinus involved in this study was maxillary sinus followed by the ethomoid then frontal and then spinoid sinus which correlates well with the studies done by the SUTAR. Most common synonezle pathology in present study was inflammatory and sinusitis being most common in that followed by the polyps which is also seen in the study done by Vijay Prabhu. 25 cases are been associated with anatomical variants out of which hypertrophic sinus being the most common eight cases which is followed by the deviated nasal symptom in seven cases. Only one case out of 60 was diagnosed on the CT is malignant which came out to be squamous carcinoma of the manzillary sinus which is also seen in study conducted by Azam Salami. Histopathological findings in almost all the cases correlates with the CT findings. The findings of the CT were similar to the histopathological findings in 55 cases and different in five patients. The CT plays an important role in diagnosing and also in adding the important findings for the better management of the patients with the synonezle diseases conclusion. This study shows the significant role in the CT diagnosis and characterization of the various synonezle diseases thereby better planning of the management. These are my references. Thank you.