الفهرس 
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Abstract
Introduction Lung cancer is the most common cause of cancer-related death worldwide accounting for more cancer-related deaths compared with colon, breast and prostate combined.
Aim The aim of this study was to detect the predominant Clinical, Radiological, Bronchoscopic and Pathological presentations of lung cancer cases admitted to National Institute of Allergy and Chest Diseases (NICD) at Imbaba.
Patients and methods This study was conducted retrospectively at bronchoscopy unit of NICD at Imbaba in the period from May 2018 to April 2019, it included 38 patients confirmed clinically and radiologically to have lung cancer admitted to the hospital or recruited from outpatient clinic.
Results A total of 38 patients (29 males and 9 females) were included in the study confirmed clinically and radiologically to have lung cancer; most of them were in the sixth decade of life. Most common histological type was adenocarcinoma (39.5%). Most common macroscopic presentation was endobronchial lesion (50%) followed by extraluminal compession (31.1%).
Conclusion from this study it is concluded that Adenocarcinoma was the most common histopathological type of lung cancer and the incidence of all subtypes of lung cancer was higher in smokers and ex- smokers compared to non- smokers. The most common alarming symptoms of lung cancer were prolonged productive cough and dyspnea followed by hemoptysis and lastly chest pain and the most common macroscopic bronchoscopic presentation of lung cancer was endobronchial lesion followed by extraluminal compression.