This is why lung cancer is usually discovered in advanced stages, and in stage III and IV, it is not operable .
Types of lung cancer.
There are two types of lung cancer:
small cell lung cancer is found in approximately 20% of cases.
non-small cell lung cancer – is is more common than small cell lung cancer It has three subtypes:
1. Squamous cell carcinoma is found in 1 third of the patients. Is the most common type of lung cancer and is often caused by smoking. Looks like an irregular mass of cells with a solid structure;
2. Adenocarcinoma is found in a quarter of cases. Unlike squamous cell carcinoma, it is more like a mass of mucus in the airways.
3. Large cell undifferentiated carcinoma is the most less encountered type. This type of cancer tumor looks like a mass of cells that can develpo in any part of the lung.
Lung cancer stages:
Areas affected: Cancer has affected only a part of the lung.
Treatment: The tumor can usualy be removed by surgery. Chemotherapy is often used after surgery.
Areas affected: Cancer is extended to lymph nodes or tissues nearby, such as the chest wall.
Treatment: The tumor can be surgically removed, making calls to the surgery after chemotherapy or radiotherapy to reduce the risk of recurrence.
Areas affected: the cancer has spread to the main chest and lymph nodes.
Treatment: Although surgery may be a treatment option at this stage of disease, such intervention often can not be performed. Even if the physician decides to go through with the surgery, adjuvant chemotherapy is also performed It surgery cannot be done, chemotherapy and/or radiotherapy may be the only treatment options. For some patients with non-small cell lung for which chemotherapy does not work, a newer treatment, such as erlotinib may be used.
Areas affected: cancer extended to other parts of the body (metastasis).
Treatment: The main goal of treatment is to control symptoms and maintain a high quality of life as much as possible.
To diagnose a series of tests are performed such as:
- Chest radiography
- Sputum analysis
- blood tests
- CT scan
- MRI (magnetic resonance)
- radiography PET
An experimental therapy can control tumor radiotherapy inoperable lung cancer and helps people with fatal diseases to live longer.
A new study shows that stereotactic therapy for de Corps (TSRC) effectively controls over 87% of inoperable cancerous tumors detected early.