This document discusses lung cancer, including its causes, types, symptoms, and treatment options. Lung cancer starts in the lungs and is often caused by smoking. The two main types are small cell lung cancer and non-small cell lung cancer. Non-small cell lung cancer includes squamous cell carcinoma, adenocarcinoma, and large-cell carcinoma. Common symptoms include shortness of breath, coughing up blood, and chest pain. Treatment options include surgery, chemotherapy, and radiation therapy. For early-stage non-small cell lung cancer, surgery may be curative without additional treatment.

1. Lung Cancer
Juan Sebastian Guzman
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2. What is a cancer ?
• It is a group of illness of the human body. In our
body's all the cells have a specific function and as
all living things reproduce. When a cell doesn't
function correctly it start reproducing without
control. When they reproduce without control
they start grouping themselves and invading
other organs making that the organs not function
properly.
• Scientists are not really sure how cancer came
about but it is caused by many external and
genetic factors .

3. Lung Cancer
• Lung cancer starts in the lungs and may go to
other organs by a process called ,metastasis ,
lung cancer start from carcinomas of the
epithelial cells , lung cancer is the cause of 1.3
million deaths as of 2004 , the most common
cause of lung cancer is smoking .

4. Types of Lung Cancer
• Small cell lung Cancer : accounts for about 20% of all lung cancers. Although the
cells are small, they multiply quickly and form large tumors that can spread
throughout the body. Smoking is almost always the cause of SCLC.
• Non Small Cell Cancer :
• Squalors cell carcinoma (also called epidermis carcinoma). This is the most
common type of NSCLC. It forms in the lining of the bronchial tubes and is the
most common type of lung cancer in men.
• Aden carcinoma. This cancer is found in the glands of the lungs that produce
mucus. This is the most common type of lung cancer in women and also among
people who have not smoked.
• Bronchi alveolar carcinoma. This is a rare subset of adenocarcinoma. It forms near
the lungs' air sacs. Recent clinical research has shown that this type of cancer
responds more effectively to the newer target therapies .
• Large-cell undifferentiated carcinoma. This cancer forms near the surface, or outer
edges, of the lungs. It can grow rapidly.

5. Signs and Symptoms
• Dyspnya : shortness of breath
• Hemoptysis : coughing up blood
• Chest pain : pain in the abdomen
• Dysphonia : hoarse voice
• Dysphasia : difficulty swallowing
• Chronic coughing : coughing that is out of the
normal pattern in the person .

6. Treatment for Lung Cancer
• There are a number of different treatment options for lung cancer.
Standard treatment options include surgical resection, chemotherapy, and
radiation therapy. Newer lung cancer treatment approaches include
photodynamic therapy, electrocautery, cryosurgery, laser surgery, targeted
therapy and internal radiation. Each lung cancer treatment has its own
specific ability to fight cancer and its own set of side effects and possible
complications. Therefore while there are many options, lung cancer
treatment needs to be performed judiciously and only after very careful
consideration of a number of factors.
• For occult and stage 0 NSCLC, surgery is generally curative without the
need for radiation or chemotherapy. This is because these stages do not
represent invasive lung cancer—the lung cancer is completely contained
within the primary tumor. Therefore when the tumor is surgically
removed, the cancer is gone for good. Obviously the success rate in this
case, as with all stages, depends on the quality and accuracy of the lung
cancer staging. If cancer cells have migrated away from the tumor, these
stages no longer apply and additional treatment is necessary.