Lung cancer is the leading cause of cancer deaths among both men and women. It claims more lives each year than other cancers like colon, prostate, ovarian and breast cancers etc. Lung cancer starts in the windpipe (trachea), bronchus, or the lung tissue.
Non small cell lung cancer (NSCLC) and small cell lung cancer (SCLC) are 2 main types of lung cancer. Small cell lung cancer usually caused by smoking and tends to spread quite early on.
There are 3 types of cancer in Non small cell lung cancer:
Adenocarcinoma is the most common type and starts in the mucus making gland cells in the lining of your bronchus.
Squamous cell cancer develops in the flat cells that cover the surface of your bronchus. It tends to grow near the centre of the lung.
Large cell carcinoma cells are large and round under the microscope
Persistent and painful cough, breathlessness, coughing blood, ache in chest or shoulder, weight loss, fatigue, consistent chest infection are few symptoms of lung cancer.
Lung cancer can be diagnosed by chest x-ray, CT scan, bronchoscopy, biopsy, gene mutation test and more depending on the condition of the patient.
Most common factors that cause lung cancer are smoking (most common), air pollution, and history of lung cancer in family, lung disease, chemicals, previous radiotherapy, and low immunity.
It can be treated by surgery, chemotherapy, radiotherapy, chemoradiotherapy, photodynamic therapy (PDT), laser therapy, microwave ablation, radiofrequency ablation, diathermy (electrocautery) depending on the stages of the lung cancer.