آخرین مطالب
امکانات وب
Types of Lung Cancer
Lung cancer is histologically classified into two main forms: small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC), which itself includes several subtypes (adenocarcinoma, squamous cell carcinoma, and large cell carcinoma), each having distinct clinical features and treatment approaches. SCLC accounts for approximately 15% of lung cancer cases, while NSCLC is responsible for almost 85% of lung cancer cases..
symptoms of lung cancer
Some common symptoms of lung cancer include:
- Persistent cough, lasting for at least 3 weeks (with or without coughing up blood)
- Unintentional weight loss (more than 5% within 6 months)
- Shortness of breath (dyspnea)
- Chest pain (due to tumor invasion of the pleura or chest wall)
- Bone pain (due to metastases, typically in the spine, pelvis, and long bones)
Stages of the Disease
Non-small cell lung cancer (NSCLC), the most common type of lung cancer, has five stages:
- Stage 0 : Cancer is confined to the lining of the airways, has not invaded deeper tissues, and has not spread beyond the lungs.
- Stage 1 : Cancer is present in the lung tissue but not in lymph nodes or other organs.
- Stage 2 : Cancer has spread to nearby lymph nodes on the same side of the chest, invaded the chest wall, diaphragm, or outer lining of the lung.
- Stage 3 : Cancer has spread to lymph nodes on both sides of the chest, mediastinum (the area between the lungs), or other structures in the chest such as the heart, esophagus, or trachea.
- Stage 4: Cancer has spread to distant organs such as the brain, bones, liver, or supraclavicular lymph nodes.
Small cell lung cancer (SCLC), a less common but more aggressive type of lung cancer, has two stages:
- Limited stage : Cancer is confined to one lung and nearby lymph nodes on the same side of the chest.
- Extensive stage : Cancer has spread beyond one lung and nearby lymph nodes and may have reached distant lymph nodes or other organs.
Determining the stage of lung cancer helps identify the best treatment options and provide prognostic information for each patient. Treatment may include surgery, chemotherapy, radiation therapy, immunotherapy, targeted therapy, or palliative care. Survival rates and life expectancy in lung cancer patients depend on several factors, including the type and stage of cancer, patient age, overall health, and treatment response.
ما را در سایت spudgene دنبال می کنید
برچسب : lung cancer, نویسنده : spudgene spudgene2023 بازدید : 27