
Bronchogenic carcinoma is a malignant primary lung tumors, which originate from the respiratory tract.
Pathophysiology and Etiology
Etiology of bronchogenic carcinoma is not known definitely.
Factors that are considered influential:
Inhaled long-term (15-20 years) of carcinogenic substances,
such as:
Cigarette smoke
Exposure to industry: asbestos, nickel, "ion exchange resin", arsenic.
Predisposing family relations / race (not clear).
Scar tissue in the lung because of other diseases, like tuberculosis, pulmonary infarction.
Clinical Symptoms and Diagnosis
1. Symptoms intrapulmoner:
Cough
Coughing up blood
Shortness of breath
Chest pain
Stridor...