Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of E.N.T

Sinusitis in its simplest form is an inflammation of the mucous membranes of the sinuses. It is a common condition in medical practice, which affects many people worldwide and its prevalence is rising. Rarely the disease may involve other parts of the sinus (bone) or the surrounding structures (Nose, orbit and, central nervous system) before the patient consults doctors. The three important factors on to which the pathophysiology of the sinus disease is related are: the patency of the ostia, the function of the cilia and the quality of the nasal secretions. Of the three factors, the patency of the ostia is the most important in the development of CRS. The diagnosis of CRS relies on clinical judgment based on a number of subjective symptoms and few findings in physical examination, so it was necessary to perform complementary exams in order to confirm diagnosis and also to indicate severity and origin of the disease. So CT scan and nasal endoscopy were performed

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