Illustrations Alterations of neoplasms. In this section we will see illustrations related to these diseases, we will see how abnormal cells multiply uncontrollably and can invade nearby tissues. Neoplasms can be benign when they spread only locally and malignant when they behave aggressively, compress nearby tissues, and spread at a distance. Outwardly they look like a mass or tumor. The cells that makeup neoplasms are clonal, i.e. they descend from a single progenitor cell. In Alterations of neoplasms, we will see that these cells of malignant neoplasms can also spread to other parts of the body through the blood and lymphatic systems.
Types of malignant neoplasms
There are several types of malignant neoplasms. Carcinoma, Melanoma, Sarcoma, Leukemia, Lymphoma, Myeloma. Malignant neoplasm and cancer are two expressions with the same meaning. One of the causes of skin cancer is prolonged exposure to the sun and, in some cases, genetic factors. Solar radiation is the most important factor since ultraviolet rays can damage the DNA of cells, but skin cancers have a genetic cause and a family history of skin neoplasms.
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In Illustrations Alterations of Neoplasms, we will see different types of skin cancer, melanoma and carcinoma: Melanoma is a malignant neoplasm. It is the most aggressive skin tumor and has the worst prognosis of all. Melanoma originates on the skin’s surface, specifically in the melanocytes, the cells that give the skin its dark color. In most cases, it appears in people who have maintained a significant exposure to the sun.
Evolution of melanoma
Melanoma in the early stages, when it does not infiltrate the skin, has an excellent prognosis for cure. When it grows in depth, the cure options are complicated. It can quickly spread to other areas of the body where it is already very difficult to treat and metastasize. Basal Cell Carcinoma: It starts in the deepest layer of the skin, very rarely produces metastasis and a correct surgery completely eliminates the disease. Spinocellular carcinoma: It starts in the outermost layer and is detected mainly in the parts of the body most exposed to the sun. They usually do not spread to other organs, although they can grow and invade nearby tissues.