Articles

  • Special Topic

    Malignancy

    Malignancy refers to cells that are cancerous. Malignant cells may spread from their primary cancer source. This is called metastatic cancer.

    The term “malignancy” refers to cancerous cells that have the ability to spread to other sites in the body (metastasize) or to invade nearby (locally) and...

  • Disease

    Malignant mesothelioma

    Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.

    Malignant mesothelioma is an uncommon cancerous tumor. It mainly affects the lining of the lung and chest cavity (pleura) or lining of the abdomen...

  • Disease

    Mediastinal tumor

    The major features of the lungs include the bronchi, the bronchioles and the alveoli. The alveoli are the microscopic blood vessel-lined sacks in which oxygen and carbon dioxide gas are exchanged.

    Mediastinal tumors are growths that form in the mediastinum. This is an area in the middle of the chest that separates the lungs.

  • Disease

    Melanoma

    Melanoma is a malignant skin tumor that involves the skin cells that produce pigment (melanin). The risk of melanoma increases with age, but frequently effects young, otherwise healthy people. Melanoma is an aggressive type of cancer that can spread very rapidly.

    Melanoma is the most dangerous type of skin cancer. It is the leading cause of death from skin disease. Melanoma can also involve the colored part of the...

  • Disease

    Melanoma of the eye

    The retina is the internal layer of the eye that receives and transmits focused images. The retina is normally red due to its rich blood supply.

    Melanoma of the eye is cancer that occurs in various parts of the eye.

  • Disease

    Metastatic brain tumor

    The major areas of the brain have one or more specific functions.

    A metastatic brain tumor is cancer that started in another part of the body and has spread to the brain.

  • Disease

    Metastatic pleural tumor

    The pleural membrane is the membrane lining the lung and the chest cavity.

    Metastatic pleural tumor is a type of cancer that has spread from another organ to the thin membrane (pleura) surrounding the lungs.

  • Disease

    Multiple endocrine neoplasia (MEN) I

    Endocrine glands release hormones (chemical messengers) into the bloodstream to be transported to various organs and tissues throughout the body. For instance, the pancreas secretes insulin, which allows the body to regulate levels of sugar in the blood. The thyroid gets instructions from the pituitary to secrete hormones which determine the pace of chemical activity in the body (the more hormone in the bloodstream, the faster the chemical activity; the less hormone, the slower the activity).

    Multiple endocrine neoplasia (MEN) type I is a disease in which one or more of the endocrine glands are overactive or forms a tumor. It is passed down...

  • Disease

    Multiple endocrine neoplasia (MEN) II

    Endocrine glands release hormones (chemical messengers) into the bloodstream to be transported to various organs and tissues throughout the body. For instance, the pancreas secretes insulin, which allows the body to regulate levels of sugar in the blood. The thyroid gets instructions from the pituitary to secrete hormones which determine the pace of chemical activity in the body (the more hormone in the bloodstream, the faster the chemical activity; the less hormone, the slower the activity).

    Multiple endocrine neoplasia, type II (MEN II) is a disorder passed down through families in which one or more of the endocrine glands are overactive or form...

  • Disease

    Multiple myeloma

    The immune system protects the body from potentially harmful substances. The inflammatory response (inflammation) is part of innate immunity. It occurs when tissues are injured by bacteria, trauma, toxins, heat or any other cause.

    Multiple myeloma is a blood cancer that starts in the plasma cells in the bone marrow. Bone marrow is the soft, spongy tissue found inside most bones. It...