Lung Cancer Types, Causes And Treatment
Lung cancer
Lung cancer
Introduction:
Lung cancer is a disease characterized by uncontrolled cell growth in tissues of the lung. If left untreated, this growth can spread beyond the lung in a process called metastasis into nearby tissue and, eventually, into other parts of the body. Most cancers that start in lung, known as primary lung cancers, are carcinomas that derive from epithelial cells. Worldwide, lung cancer is the most common cause of cancer-related death in men and women, and is responsible for 1.3 million deaths annually, as of 2004. The most common symptoms are shortness of breath, coughing (including coughing up blood), and weight loss.
Main Idea:
Lung cancer may be seen on chest radiograph and computed tomography (CT scan). The diagnosis is confirmed with a biopsy. This is usually performed by bronchoscopy or CT-guided biopsy. Treatment and prognosis depend on the histological type of cancer, the stage (degree of spread), and the patient's general wellbeing, measured by performance status. Common treatments include surgery, chemotherapy, and radiotherapy.
Lung cancer is the uncontrolled growth of abnormal cells in the lung. Normal lung tissue is made up of cells that are programmed by nature to create lungs of a certain shape and function. Sometimes the instructions to a cell go haywire and that cell and its offspring reproduce wildly, without regard for the shape and function of a lung. That wild reproduction can form tumors that clog up the lung and make it stop functioning as it should. Because of the large size of the lungs, cancer may grow for many years, undetected, without causing suspicion. In fact, lung cancer can spread outside the lungs without causing any symptoms. Adding to the confusion, the most common symptom of lung cancer, a presistent cough, can often be mistaken for a cold or bronchitis.
Symptoms of lung cancer:
Lung cancer may cause a number of symptoms. A cough is one of the more common ones and is likely to happen when a tumor grows and blocks an air passage. Another symptom is chest, shoulder, or back pain, which feels like a constant ache that may or may not be related to coughing. Other symptoms may include shortness of breath, fatigue, repeated pneumonia or bronchitis, coughing up blood, hoarseness, or swelling of the neck and face.
Types of lung cancer:
The type of cells found in a tumor determines the kind of cancer. The two main types of lung cancer are small cell and nonsmall cell. The terms small cell and nonsmall cell refer to the type of cell a doctor can see under the microscope, not to the size of the tumor. There are more than a dozen different kinds of lung cancer.
The following types of lung cancer cause about 90% of all lung cancer cases:
Small cell carcinoma (also called oat cell carcinoma): usually starts in one of the larger breathing tubes, grows fairly rapidly, and is likely to be large by the time of diagnosis.
Nonsmall cell lung cancer (NSCLC): is made up of the following three subtypes:
Epidermoid carcinoma (also called squamous cell carcinoma) : usually starts in one of the larger breathing tubes and grows relatively slowly. The size of these tumors can range from very small to quite large.
Adenocarcinoma: starts growing near the outside surface of the lung and may vary in both size and growth rate. Some slowly growing adenocarcinomas are call alveolar cell cancer.
Large cell caracinoma: starts near the surface of the lung, grows rapidly, and is usually large when diagnosed.
Lung Cancer Causes:
Cigarette smoking is the most important cause of lung cancer. Research as far back as the 1950s clearly established this relationship.
Cigarette smoke contains more than 4,000 chemicals, many of which have been identified as causing cancer.
A person who smokes more than one pack of cigarettes per day has a 20-25 times greater risk of developing lung cancer than someone who has never smoked.
Once a person quits smoking, his or her risk for lung cancer gradually decreases. About 15 years after quitting, the risk for lung cancer decreases to the level of someone who never smoked.
Cigar and pipe smoking increases the risk of lung cancer but not as much as smoking cigarettes.
Conclusion:
Now a days lung cancer having the cure with some treatments, those are as follows.
Treatment of lung cancer:
Surgery
Radiotherapy
Chemotherapy
Small-cell lung carcinoma
Non-small-cell lung carcinoma
Adjuvant chemotherapy
Palliative care
by: venkat
Karnala Panoramic Resort Of Panoramic Group Near Panvel And Mumbai How To Clean, Repair And Maintain Bifold Doors? Breast Cancer Stages And Treatment Why Women Lie To Men And How To Stop Them From Lying To You Packers And Movers Noida Andghaziabad For Your Problem Free Transportation Use 50cc Motorcycle To Have A Cheerful And Safe Riding Experience All-natural Anxiety And Panic Attack Cures - Effortless All-natural Cures For Anxiety The Rise And Demise Of Concorde Packing Stuffs And Important Guidelines For Packing Of Home Assets Packers And Movers In Faridabad Make Relocation Safe And Trouble-free Facial Hair Removal And Body Hair Removal Methods Available - Advantages And Disadvantages Signs And Symptoms Of Lung Cancer Smart And Successful Team Building Activities To Make Your Employees Proficient