Diagnosis and Management of Bronchogenic Carcinoma

Clinical Presentation and Risk Factors

The American Thoracic Society suggests that age and smoking history are critical predictors of bronchogenic carcinoma, with a mean age of diagnosis of 64 years and nearly all patients having a smoking history 1, 2
Smoking is the most well-studied risk factor for both COPD and bronchogenic carcinoma, according to the American Journal of Respiratory and Critical Care Medicine 2
The European Respiratory Journal recommends that patients with COPD are considered good candidates for lung cancer screening, especially with radiological emphysema 6

The Journal of the American College of Radiology guidelines emphasize that pulmonary nodules represent the most typical radiographic presentation of early lung cancer, and CT chest is superior to plain radiography for detecting pulmonary nodules 4, 5
The American College of Radiology recommends assessing nodule characteristics: size, spiculation, location, and presence of calcification, with independent predictors of malignancy including older age, smoking status, nodule diameter, spiculation, and upper lobe location 1, 5
For nodules >1.5 cm in a high-risk patient, biopsy is usually appropriate, with percutaneous lung biopsy or FDG-PET whole body as first-line approaches, according to the Journal of the American College of Radiology 5

The European Respiratory Journal suggests that lung cancer must be ruled out in all patients with persistent pulmonary symptoms and smoking history, and never assume COPD or chronic bronchitis explains a focal density 6
The Journal of the American College of Radiology recommends against delaying investigation with a "wait and see" approach, with follow-up imaging only rating 2/9 (usually not appropriate) for a 55-year-old smoker with a 1.5 cm nodule 5