Myxoma (Heart Tumor), Definition, Treatment and Surgery

Definition of 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, […]

Read More

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, […]

Read More

Leukemia – Definition, Types, Symptoms and Treatment

Definition of Leukemia 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 of Leukemia […]

Read More

Skin Cancer – Definition, Types, Symptoms and Treatment

Definition of Skin Cancer 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 […]

Read More

Lymphoma – Definition, Symptoms and Treatment

Definition of Lymphoma Lymphoma is a type of cancer that affects the hematopoietic functions of the lymph system that results in the uncontrolled proliferation of lymphocytes, the type of leukocyte  (white blood cell) that the lymph tissues primarily produce. The lymphocytes congregate in the lymph tissues to form tumors. Lymphoma vs Leukemia Leukemia and lymphoma are both cancers […]

Read More

Colorectal Cancer – Definition, Staging, Symptoms and Treatment

Definition of Colorectal Cancer Malignant growths in the colon, most commonly in the sigmoid colon and the rectum. Colorectal cancer is the second-leading cause of death due to cancer in the United States. However, colorectal cancer is also one of the most preventable and, with early detection, among the most treatable kinds of cancer. More than 95 percent of […]

Read More

Multiple Myeloma (Cancer) – Symptoms and Treatment

Definition of Multiple Myeloma A cancer of the bone marrow in which plasma cells, also called myeloma cells or myelocytes, proliferate, accumulating as lesions (growths) to develop within the bone marrow cavities of the bones. The lesions prevent normal functioning of the bone marrow. They also damage bone tissue and weaken the bone structure. Plasma […]

Read More

Esophageal Cancer – symptoms and treatment

Definition of Esophageal Cancer Esophageal Cancer – malignant growths in the esophagus. Cancer of the esophagus takes one of two forms: adenocarcinoma or squamous cell carcinoma. Adenocarcinoma is the more common form and nearly always originates near the esophageal entry to the stomach. Esophageal adenocarcinoma is nearly always a progression of Barrett’s esophagus, a condition in which the tissue structure of the […]

Read More

Lung Cancer – Definition, Types, Stages, Treatment, Risk Factors

Lung Cancer – Definition and Basic Information Lung Cancer – malignant tumors that grow in the lungs. Lung cancer may be primary (originate in the lungs) or metastatic (spread to the lungs from cancer that originates elsewhere in the body). There are two main types of lung cancer: small cell lung cancer (SCLC), which is particularly aggressive, and non-small […]

Read More

Hereditary Nonpolyposis Colorectal Cancer (HNPCC)

Definition of Hereditary Nonpolyposis Colorectal Cancer Hereditary Nonpolyposis Colorectal Cancer (HNPCC) – a form of colorectal cancer predisposed by a mutation in the mlh1 and msh1 genes. These genes direct DNA repair mechanisms, the processes cells follow to correct mistakes that occur when they replicate their DNA codes during cell reproduction, for cells in the mucous […]

Read More