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Chronic sinusitis is one of the commonest causes of patients visit to the otorhinolaryngologist. Surgical clearance of these chronically infected sinuses while maintaining their ventilation and drainage is the treatment of choice. To achieve this goal, there should be some diagnostic modality, which guides us towards exact diagnosis and safe intervention. Over past decade, both CT and nasal endoscopy have been used successfully as diagnostic modality in sinus disease. To perform functional endoscopic sinus surgery effectively and safely, the surgeon must have detailed knowledge of the anatomy of the lateral nasal wall, Para nasal sinuses and surrounding vital structures. Sinus disease management has been technologically enhanced in recent years by improved radiographic evaluation and methods for intranasal visualization .Computerized Tomography (CT) provides essential pre-operative information for the assessment of patients undergoing functional endoscopic sinus surgery (FESS). One of the aims of CT of the sinuses is to delineate the extent of the disease, define any anatomical variants and relationship of the sinuses with the surrounding important structures. At present, CT scanning is the most used imaging technique for assessing chronic sinusitis and defining the anatomic abnormality. The primary role of the coronal CT scan is to determine the extent and possibly the underlying cause of sinusitis. As a rule, surgeons individualize their surgical approach according to the amount and location of disease they see on CT scan. Endoscopic techniques for Para nasal sinus surgery have allowed detailed and complete visualization of sinus disease while promising minimum distress to the patient. The telescopic view of the operative field shows detail of the sinus anatomy and its disease. It has been possible to see areas of the cribriform and orbital wall that are at risk to produce cerebrospinal fluid rhinorrhea and orbital complications during the surgery. At the same time, landmarks for avoiding these complications can be defined to guide the surgeon during the surgery as seen through the endoscope. Recently combination of diagnostic endoscopy and systematic understanding of the lateral nasal wall with CT in the coronal plane has become the corner stone in the evaluation of the PNS disease. This is the basis of the new concept of FESS. In our study we have compared the diagnostic endoscopic and CT findings with the operative findings of patients with sinus diseases.

Comparative Study of Endoscopic Findings and CT-Para Nasal Sinuses appearances in Chronic Sinusitis