Posts Tagged melanoma

Lung Cancer – Causes, Symptoms and Treatment

Lung cancer is the malignant transformation and expansion of lung tissue, and is the most lethal of all cancers worldwide, responsible for 1.2 million deaths annually. It is a leading cause of cancer death in men and women in the United States. Cigarette smoking causes most lung cancers. The more cigarettes you smoke per day and the earlier you started smoking, the greater your risk of lung cancer. High levels of pollution, radiation and asbestos exposure may also increase risk. There are many types of lung cancer. Each type of lung cancer grows and spreads in different ways and is treated differently. Treatment also depends on the stage, or how advanced it is.

Treatment may include chemotherapy, radiation and surgery. Lung cancer that originates in the cells of the lungs is called primary lung cancer; however, cancer may also spread to the lung from other parts of the body. Metastatic cancers spread to the lungs most commonly from the breast, colon, prostate, kidney, thyroid gland, stomach, cervix, rectum, testis, bone, and skin (melanoma). More than 90% of primary lung cancers start in the bronchi such lung cancer is called bronchogenic carcinoma. The specific types of lung cancer are small cell carcinoma, squamous cell carcinoma, large cell carcinoma, and adenocarcinoma. The last three types of lung cancer are often referred to as nonsmall cell lung cancers. Alveolar cell carcinoma originates in the small air sacs of the lung (alveoli). Although alveolar cell carcinoma can occur at a single site, it often develops simultaneously in more than one area of the lung. Less common lung tumors are bronchial carcinoid (which may be cancerous or noncancerous), chondromatous hamartoma and sarcoma. Lymphoma is a cancer of the lymphatic system; it may start in the lungs or spread to them.

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Skin Cancer – A Review

Cancer is the most dreadful disease. However, skin cancer is somewhat less virulent compared to the other variety of cancers. Skin cancer by far the most common form of cancer among human beings. The incidence of such cancer is quite high. The USA records several thousands cases every year.

What Is It And How Many Types Are There

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Eyelid Skin Cancer

Skin Cancer of the eyelids poses several diagnostic and management challenge. As a referral specialist, I see these patients well after a significant progression has occurred and the diagnosis is fairly obvious. The excision and reconstruction if these tumors requires a great degree of creativity and flexibility to achieve the optimal result.

The ultraviolet radiation that is primarily responsible for malignant transformation of skin cancer are 290 to 320 nm(UV-B). The most common malignancies affecting the periocular region are basal cell carcinoma, squamous cell carcinoma, sebaceous cell carcinoma, and malignant melanoma. Basal cell carcinoma accounts for 90% of all eyelid malignancies. The tumor primarily involves the lower eyelid (50% to 66%) and the medial canthus (25% to 30%). The upper eyelid is affected in 15% of cases and the lateral canthus in 5%. Although these statistics are helpful, many skin cancers involve adjacent anatomic areas such as the forehead and cheek, and pose even greater challenges in reconstruction.

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An Article on Cancer

AN ARTICLE ON CANCER

What is cancer?

Cancer is the general term used for diseases in which normal cells separate without any control thus involving other tissues. Cancer cells can also spread to various parts of the body through the blood and lymph system.

 

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What is Skin Cancer? What you need to know

Skin cancer, although it seems small, can be quite deadly if it is not caught on time. As for how it develops, the cancer develops when DNA is damaged beyond repair. The cells that are damaged then grow and divide at a rate that is uncontrollable. When this damage occurs in the skin and the cells grow and divide uncontrollably, skin cancer is the result. The damaged cells will continue to multiply and that will cause a tumor.

The cancer usually develops in the epidermis, which is the outermost skin layer. That is why the skin cancer tumor is usually quite visible. This is why skin cancer is usually detectable in the early stages.

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