 Hello everyone. I'm Dr. P. Manendi from Usmani Medical College. My topic of presentation is CT evaluation of cyanoneazole tumors. Coming to the introduction, a variety of non-neoplastic and neoplastic conditions involving the nasal cavity, paranoazole sinus, and nasopharynx are commonly encountered in the clinical practice. The illogical factors for the development of cyanoneazole noses are human papillomavirus, allergens, air pollution, industrial carcinogens, tobacco, alcohol, and occupational exposures to heavy metals. In this study, we tried to evaluate the CT findings of the cyanoneazole noses and their characteristic features. The malignancies of the nasal cavity and paranoazole sinus account for 1% of all malignancies and 3% of the maligness of the operative digestive tract. In the cyanoneazole tract, nearly half of the malignancies arise in the nasal cavity, whereas most of the remaining malignancies arise in the maxillary or ethmoid sinus. Although complex anatomy and various normal variants of the cyanoneazole tract cause difficulty in identifying the origin and extension of the large cyanoneazole tumors, the invasion of the vital structures, such as brain and optic noses and intel canal artery, affects the patient's prognosis, which can be evaluated by CT. The diagnostic imaging take a key role in predicting the histological subtype and evaluating tumor extension. The aims and objectives are to describe the imaging findings of cyanoneazole noses benign and malignant with the help of a plane and contrast enhancement CT, which helps in describing the extension and exact location of the tumor and growth pattern in the senbus and enrollment of the other vital structures. Coming to materials and methods, all patients with suspicions of nasal mass, resented to Spondymedical College Hospital, have an underwent CT PNS, which is done in heat-achieve and 28-slice CT. In this presentation, a total of 18 cases are evaluated and out of the seven cases of cyanoneazole masses were included in the study. The patients have given informed consent with clinical history and local examination done to the patient. These subjects are underwent contact CT after routine hematological and biochemical evaluation, and underwent conventional imaging of X-ray of PNS. And in few cases, when needed, the final last patient and cytology was done. That technique was CT PNS in thin sections in both soft tissue and bone algorithm, and in few cases, IV contrast was given. Observation results. Out of seven cases, five cases were benign and two cases were malignant. Gender and distribution male, out of seven, four cases were of male and three of female. Coming to first case, this is a case of esthetic neuroblastoma. Here we can see evidence of soft tissue density with heterogeneous enhancement noted in the right nasal cavity, sorry left nasal cavity and left nasal sinus, with hypotenuse and there is extension of the mass in seen intraperineally with a few hypodense cystic lesions noted in the adjacent to the lesion. This is a case of esthetic neuroblastoma. There are a few curvilinear and apache calciferin noted within the lesion. Coming to the second case, this is images showing in coronal and axial CT images showing in bone and soft tissue window. It shows a very well-defined, expansive lesion with sclerotic rim and areas of calciferin noted within, which is entered in the right maxilla sinus and distorting the upper alveolus and effacing the right hetmodelases and abutting the nasopharyngeal and oropharyngeal. This is a case of a juvenile ossifying fibroma. Coming to the third case, there is a heterogeneous enhancing mass in the right side of the nasal cavity with the destruction of the bone in nasal septum and lamina papertia, which is not seen here, lamina papertia and with the intraorbital extension causing distortion of the eyeball and is also involving the right maxilla sinus showing a heterogeneous enhancement. This is a case of inverted papillomal, which is proved on biopsy. Coming to fourth case, there is a lobulated non-encapsulator soft tissue density, which is likely arising from the spinopalatin foramen. There was a widening of the spinopalatin foramen and the lesion shows intense enhancement of transmission of contrast and there are no obvious bone erosion, but there is some remodeling of the bone with widening. Coming to case five, these are the axial CT images in soft tissue and bone window. There is a heterogeneous enhancing soft tissue lobulated mass lesion noted in the nasal cavity. This is likely arising from the phosphorosynmolar and extending posteriorly and encasing the internal carotid artery on the right side and also causing narrowing. There are multiple heterogeneous enhancing lymph nodes with few non-enhancing necrotic areas, not at multiple levels. These are the repositions. This is the case of anasopharyngeal carcinoma. Coming to case six, there is a heterogeneous intensely enhancing soft tissue density lesion noted in the right nasal cavity, which is extending to infratemporal fossa and also few air fork and there is also an extension to the orbit and also some component of the intracranial component. There are bone erosion and few air pockets noted in the lesion. This is the case of salt edificis tumor, which is also called hemangioperosite tumor. Coming to the discussion and this is the prospective observance study of seven patients. 72% of the cases are benign and of which 66% showing a destruction of the adjacent nasal bone and nasal bones and 50% of the cases showing extrusion to the nasal pairings posteriorly. In the study, two cases are reported to be malignant showing extrusion with cervical and cervical mints in the case of NPC. Males are affected more than females with a ratio of 1.3 each one. Coming to references, the benign lesions occurred frequently in the second decade of the life. Numbering 18, well tallied with the study of barn cell and for malignant lesions. Findings were tallied with Sakai as most of the patients belong to the six-tickets and seven-ticket of lab. By model age distribution was seen in case of sinusoidal lymphoma correlates with observation of butaskis and barns. Also observed with the disease of the nose and paransal synthesis with male predominance, nasal mass and nasal obstruction as a research, which has seen in 70% of the patients was commonly presented simple. Also observed in spiro and hasdo as in their studies. Coming to other study, soft tissue mass extending beyond the areas of origin, we have seen in case of malignant salamence muscle tumors. So committed the propensity of the maxillus sinus and ethmerus sinus malignancy to involve adjacent sinuses, nasal cavities orbit center, telepagic lymphosa, intracranial posa in the study included maxillar ethmer and nasal malignancies or tell involvement was noted in bulk of the patients. Cortical lesions detected at CT as a break of the mineralized bone through its own thickness. Aggressive benign neoplasms such as the general angiopulmonary malignant tumors have shown cortical lesions in our study as mentioned by Somje. Bony abnormality most commonly seen in case of malignancy and nasal tumors for the destruction evidence of bone destruction has been mentioned on the characteristic points of malignant salamence tumors. Thus imaging of the peri-orbit is crucial prediction of the orbital invention have has been wasted on the direction of the positive findings through progressive steps tumor contacting peri-orbital notified obliteration of helper in assessing the tumors. Coming to the conclusion, another location of the salamence muscle mass and their extension can be defined accurately by using the computer tomography. It can define the character of the salamence muscle mass differentiating benign from malignant. It permits more detailed evaluation of bone structures of tissue and contents including those of sinuses, nose and also easy appreciation of bony abnormalities and detection of the calcification. Computer tomography and MRI also infuse helper in panning treatment of precision and follow-up studies. Thank you.