Multiple miscarriage
More than one miscarriage for a woman. In multiple miscarriages, there is about a 5 percent chance that one member of the couple is carrying a chromosome translocation responsible for the miscarriages. Other causes of multiple miscarriage include Rh incompatibility, continuing exposure to teratogens (agents that can injure the fetus), and physical problems in the mother that make it difficult for her to carry a fetus to term.
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A bone marrow cancer that involves a type of white blood cell called a plasma (or myeloma) cell. The tumor cells in myeloma can form a single collection (plasmacytoma) or many tumors (multiple myeloma). Plasma cells are normally part of the immune system; they make antibodies. Because myeloma patients have an excess of identical plasma […]
- Multiple personality disorder
Also known as dissociative identity disorder. A neurosis in which the personality becomes dissociated into two or more distinct parts each of which becomes dominant and controls behavior from time to time to the exclusion of the other parts.
- Multiple sclerosis
A disease that is characterized by loss of myelin (demyelinization). Abbreviated MS. Myelin, the coating of nerve fibers, is composed of lipids (fats) and protein. It serves as insulation and permits efficient nerve fiber conduction. In MS, demyelinization usually affects white matter in the brain, but sometimes it extends into the gray matter. When myelin […]
- Multiple subpial transection
A multiple subpial transection (MST) is a procedure is used to help control seizures that begin in areas of the brain that cannot be safely removed. The surgeon makes a series of shallow cuts (transections) in the brain tissue. These cuts interrupt the movement of seizure impulses but do not disturb normal brain activity, leaving […]
- Multiple symmetric lipomatosis
A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper trunk, arms and legs. The condition is thought to be genetic although its exact mode of inheritance is uncertain. It may be a mitochondrial DNA disease. It frequently appears in association with alcoholic liver disease, macrocytic anemia (“low […]