What You Really Need to Know about Cancer

Saturday, November 2, 2013

Types and Stages of Lung Cancer

Stages of lung cancer are decided on how much the lung cancer has spread in the body, whether the cancer is local or has spread from the lungs to other organs or lymph nodes. As lung space is large enough to spread the cancer, signs and symptoms of lung cancer are not visible until the cancer gets advanced and stages of lung cancer 1 and 2 are difficult to detect since the patient would be having symptoms like coughing, fatigue, etc. These are very common signs and symptoms of other respiratory diseases. So often doctors get misdiagnosed lung cancer from other respiratory diseases.  Lung cancer can be classified into two types, non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). Lung cancer is divided into two types by the microscopic appearance of tumor cells.

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stages of lung cancer
Lung Cancer Stages

Non-Small Cell Lung Cancer

Non small cell lung cancer is the most common type of lung cancer, which spread rapidly and it can be divided into three subtypes

Squamous cell carcinoma: cancer which originate from the central area of the bronchi and the lining of the bronchial tubules.

Large cell carcinomas: Large cell carcinomas are considered as non-small cell lung cancers that are neither adenocarcinoma nor epidermoid cancers.

Adenocarcinoma: Most common type of lung cancer among US and basically it is associated with smoking and also its found among non smokers

Stages of Non – Small Cell Lung Cancer

Stage1: Cancer cell growing within the lung and never spread other tissues or lymph nodes
Stage2: In stage 2 cancer cells usually spread to near by lymph nodes.
Stage3: Cancer cells have spread to lymph nodes of the chest from the lung, usually the lymph nodes at the middle of the chest.
Stage4: is the most advanced and developed stage of lung cancer where cancer cells spread from lung to  lymphatic system and spread other organs like liver, brain, bone marrow.

Want to know how cancer cells escape from our natural immune system?

Small Cell Lung Cancer
According to new researches small cell cancer spread due to smoking than non small cell lung cancer and grows rapidly and spread to other parts of the body.

Stages of lung cancer

Extensive stage: in this stage cancer cells spread from the lung to the other regions of the chest and other parts of the body

Limited Stage: in this stage, cancer cells are found one side of the lung and spread to  near by lymph nodes


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