Non-small cell lung cancer occult stage
In occult-stage non-small cell lung cancer (NSCLC), cancer cells are found in the sputum (mucus from the lungs), but tumors are not immediately visible. Patients in the occult stage of lung cancer often do not have symptoms, though a persistent cough may be an indication.The five-year survival rate for patients diagnosed with occult stage non-small cell lung cancer is 60 - 80 percent.
What is occult stage lung cancer?
In occult-stage NSCLC, cancer cells are found in the sputum (mucus from the lungs), but tumors are not immediately visible. Patients in the occult stage of lung cancer often do not have symptoms, though a persistent cough may be an indication.
When cancer cells are identified, tumors can be located with imaging tools such as:
- Chest X-Ray
- CT Scan
At CTCA®, we use PET/CT (positron emission tomography/computed tomography), which combines two imaging technologies in one to detect small tumors in the lungs. Combining PET/CT technology reveals where healthy lung tissue ends and the tumor begins. A PET scan also reveals cancerous cells before any structural changes are present. This precisely pinpoints tumors, so that we can properly diagnose and stage the disease, and focus strictly on treating the cancerous tissues.
After the tumor is located (if it can be located), treatment is determined after the tumor is staged, using the TNM staging system.
TNM categories of occult stage
An occult stage NSCLC diagnosis occurs in conjunction with the following TNM categories:
- TX: Cancer cells were spotted, but no tumor can be located.
- N0: The cancer has not spread to the lymph nodes.
- M0: There cancer has not spread to organs or other areas.
Common treatment for occult-stage NSCLC
Treatment for occult-stage NSCLC depends on the patient’s overall health. Occult tumors may sometimes be removed with surgery.
We also provide therapies to ease the symptoms that may be associated with NSCLC, while improving your quality of life.