Carcinoma – Definition, Types Tumor and Cancer

Definition A cancerous tumor that arises from epithelial cells. Epithelial cells form the surface layer of tissue throughout the body: the SKIN, mucous membranes, and serous membranes (lining of the internal body cavities). This tumor is the most common form of cancer. Tumor generally carries the name of the tissue or site of its origin; […]

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Wilms’s Tumor – Symptoms, Treatment and Prognosis

Definition of Wilms’s Tumor Wilms’s Tumor – a malignant (cancerous) growth in the kidney. Wilms’s tumor, also called nephroblastoma, nearly always affects children under age six. Though relatively rare, with doctors diagnosing about 500 children a year in the United States with this form of kidney cancer, Wilms’s tumor is the most common cancer of the […]

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Dysplasia definition, treatment and cancer

What does dysplasia mean – Dysplasia definition Abnormal changes that are occurring in cells. In dysplasia, rapidly dividing cells form tissue that has an anomalous structure. This structure has the potential of transitioning to cancer. Dysplasia is an early stage of development for all cancers but not all dysplasia becomes cancer. Because there is no […]

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Bone Cancer – symptoms, prognosis, treatment and survival rate

What is Bone Cancer and Definition Cancer that occurs in the tissues of the BONE, either as primary cancer (cancer that originates in the bone) or metastatic cancer (cancer that spreads to the bone from an origin elsewhere in the body). Primary bone cancer is rare; doctors in the United States diagnose about 2,500 people with primary bone cancer […]

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Sarcoma cancer and types of sarcoma

What is Sarcoma Cancer Sarcoma Cancer that arises from connective tissue such as BONE, TENDON, CARTILAGE, fat, MUSCLE, and other soft tissues. Sarcomas may also develop within the walls of BLOOD vessels, which contain connective tissue. Treatment generally combines surgery to remove the tumor with RADIATION THERAPY or, less commonly, CHEMOTHERAPY. Radiation exposure, such as occurs with radiation therapy for other cancers or with accidental […]

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Kaposi’s sarcoma – cancer skin – treatment and symptoms

Kaposi Sarcoma Definition Kaposi’s Sarcoma – A CANCER that develops in the connective tissues that support the SKIN, with characteristic lesions on the skin and mucous membranes. There are several types of Kaposi’s sarcoma. The two that are most common in the United States are AIDS-related Kaposi’s sarcoma and transplant-related Kaposi’s sarcoma. In 1994 researchers discovered that human herpesvirus […]

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Myxoma (heart tumor), treatment and surgery

What is Myxoma (heart tumor), treatment and surgery Myxoma is a nonmalignant tumor that grows in the HEART, nearly always in one of the atria and most commonly in the left atrium. Myxoma arises from the ENDOCARDIUM and may be either firm or soft in consistency. The tumor can block the flow of BLOOD through the atrium, interfere with […]

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Keratoacanthoma – skin cancer – treatment

Definition of Keratoacanthoma Keratoacanthoma is a form of squamous cell carcinoma (SKIN CANCER) that appears suddenly and grows rapidly, though has a low rate of METASTASIS (spreading). Like other forms of skin CANCER, keratoacanthoma is the consequence of extensive sun exposure that manifests decades later. Researchers have identified a number of chromosomal abnormalities that appear connected with keratoacanthoma, […]

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Leukemia – types, symptoms and treatment

What is Leukemia and Definition A type of CANCER that affects the bone marrow’s production of leukocytes (white blood cells). Doctors classify leukemia as either myeloid (sometimes called myelocytic) or lymphocytic (sometimes called lymphoblastic), depending on the type of leukocytes affected. Within either classification leukemia can be acute or chronic. The four most common types […]

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Skin Cancer – types, symptoms and treatment

Skin Cancer – Malignant growth that arises from the epidermis or dermis. There are many types of CANCER that occur in the SKIN. The three most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and malignant melanoma. Skin cancer is the most widely diagnosed type of cancer in the United States, with about 1 million […]

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