What is non-small cell lung cancer?
Non-small cell lung cancer (NSCLC) is a disease in which malignant cells form in the tissues of the lung. It is the most common type of lung cancer. Smoking is the major risk factor for non-small cell lung cancer.
Symptoms of non-small cell lung cancer include bronchitis, pneumonia, headache, bone pain, balance problems, yellow skin or eyes, arm numbness and so on.
Tests commonly used to examine or diagnose NSCLC include imaging tests, sputum cytology, fine-needle aspiration biopsy, bronchoscopy, endoscopic ultrasound, thoracoscopy, mediastinoscopy, etc.
What are the types of non-small cell lung cancer？
The following are the subtypes of non-small cell lung cancer, they are:
- Adenocarcinoma: It starts in cells in your air sacs that make mucus and other substances, is usually found in outer parts of the lung.
- Squamous cell (epidermoid) carcinoma: It starts in early versions of squamous cells, which are flat cells that line the inside of the airways in the lungs. It tends to be found in the central part of the lungs, near bronchus.
- Large cell (undifferentiated) carcinoma: It can appear in any part of the lung, and tends to grow and spread quickly.