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Lung Cancer Diagnosis and Follow-up

Lung cancer diagnostic process and oncologic follow-up — radiologic, pathologic, and molecular evaluation.

Multidisciplinary management of lung cancer with PET-CT, tissue biopsy, staging, and molecular testing in patients with suspicious pulmonary nodules or masses.

Indication

  • Cough lasting longer than three weeks, blood-streaked sputum, or hoarseness
  • Unexplained weight loss, loss of appetite, and persistent fatigue
  • Suspicious nodules or masses detected on chest X-ray or CT
  • Long-term smoking history or occupational exposure to asbestos or radon
  • Family history of lung cancer and eligibility for a lung cancer screening program
  • Recurrent pneumonia, pleural effusion, or unexplained thrombotic events

Preparation

  • Collection of previous chest X-rays, CT/PET images, and pathology reports
  • Detailed documentation of smoking history, occupational exposure, and family history
  • Adjustment of blood thinners with physician approval before biopsy
  • Fasting for at least 6 hours before bronchoscopy or needle biopsy
  • Updated reports on accompanying cardiac and renal conditions

How it's performed

  1. Detailed history-taking and physical examination to assess risk factors
  2. Staging imaging with thoracic CT, PET-CT, and brain MRI when needed
  3. Bronchoscopy, EBUS, or CT-guided transthoracic needle biopsy depending on lesion location
  4. Histopathologic evaluation; differentiation between small cell and non-small cell types
  5. Molecular and immunohistochemical testing including EGFR, ALK, ROS1, KRAS, and PD-L1
  6. Treatment planning at the multidisciplinary tumor board for surgery, chemotherapy, radiotherapy, targeted therapy, or immunotherapy

Post-procedure

  • Imaging and clinical evaluation every 2-3 months during treatment
  • Follow-up every 3-6 months in the first 2 years after treatment, then every 6-12 months
  • Smoking cessation support and pulmonary rehabilitation programs
  • Recommendation of pneumonia and influenza vaccines
  • Surveillance for secondary cancers and concurrent cardiovascular disease

Risks

  • Pneumothorax, bleeding, or infection related to biopsy procedures
  • Systemic side effects of chemotherapy, targeted therapy, and immunotherapy
  • Radiotherapy-related pneumonitis, esophagitis, and skin reactions
  • Respiratory failure, pleural effusion, and metastatic disease during the course of illness
  • Fatigue, depression, and reduced quality of life associated with treatment

FAQ

Is lung cancer always caused by smoking?

Smoking is a major risk factor; however, lung cancer can also occur in people who have never smoked due to radon, asbestos, air pollution, or genetic factors.

If a nodule is found, does it definitely mean cancer?

Most nodules may be benign. Follow-up or biopsy is planned based on size, appearance, and risk factors; a definitive diagnosis is made only with tissue examination.

Should I have a screening test?

Low-dose lung CT screening may be recommended for individuals who meet specific age and smoking criteria; your physician will determine eligibility.

Can I continue working during treatment?

It depends on the type of treatment, side effects, and overall condition; some patients continue with adjusted schedules while others may need temporary leave during treatment.