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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «M»:

  1. Meningitis - tuberculous Meningitis - tuberculous
    Tuberculous meningitis is an infection of the the membranes covering the brain and spinal cord (meninges). See also: Meningitis Meningitis - cryptococcal Meningitis - gram-negative Meningitis - H. influenzae Meningitis - meningococcal Meningitis - pneumococcal Meningitis - staphylococ...
  2. Meningocele repair Meningocele repair
    Meningocele repair (also known as myelomeningocele repair) is surgery to repair birth defects of the spine and spinal membranes. Meningocele and myelomeningocele are types of spina bifida. Description For both meningoceles and myelomeningoceles, the surgeon will close the opening in the back. After...
  3. Meningococcemia Meningococcemia
    Meningococcemia is an acute and potentially life-threatening infection of the bloodstream that commonly leads to inflammation of the blood vessels (vasculitis). See also: Septicemia Causes Meningococcemia is caused by a bacteria called Neisseria meningitidis. The bacteria frequently lives in a per...
  4. Meniscal allograft transplantation Meniscal allograft transplantation
    Meniscal allograft transplantation is a type of surgery in which a new meniscus, a cartilage ring in the knee, is placed into your knee. The new meniscus is taken from a person who has died (cadaver). Description There are two cartilage rings in the center of each knee, one on the inside (medial me...
  5. Meniscus tears Meniscus tears
    Meniscus tears refer to a tear in the shock-absorbing cartilage (meniscus) of the knee. Considerations The meniscus is a C-shaped piece of cartilage located in the knee. Cartilage is found in certain joints and forms a buffer between the bones to protect the joint. The meniscus serves as a shock-ab...
  6. Menkes syndrome Menkes syndrome
    Menkes syndrome is an inborn error of metabolism in which cells in the body cannot absorb enough copper. Causes Menkes syndrome is caused by a defect in the ATP7A gene. The defect makes it hard for the body to distribute and absorb copper. As a result, the brain and other parts of the body do not g...
  7. Menopause Menopause
    Menopause is the transition period in a woman's life when her ovaries stop producing eggs, her body produces less estrogen and progesterone, and menstruation becomes less frequent, eventually stopping altogether. Causes Menopause is a natural event that normally occurs between the ages of 45 and 55...
  8. Menstrual periods - heavy, prolonged, or irregular Menstrual periods - heavy, prolonged, or irregular
    Irregular menstruation; Heavy, prolonged, or irregular periods; Menorrhagia; Polymenorrhea; Metrorrhagia and other menstrual conditions; Abnormal menstrual periods; Abnormal vaginal bleeding Considerations The menstrual cycle is not the same for every woman. On average, menstrual flow occurs every ...
  9. Menstruation - absent Menstruation - absent
    Absent menstruation means no menstrual flow, or period. Absent menstruation may be: Primary -- no menstruation before age 16 Secondary -- menstruation begins at the appropriate age, but later stops for more than 3 cycles or 6 months Absent menstruation is called amenorrhea. Considerations Many pe...
  10. Mental retardation Mental retardation
    Mental retardation is a condition diagnosed before age 18 that includes below-average general intellectual function, and a lack of the skills necessary for daily living. Causes Mental retardation affects about 1 - 3% of the population. There are many causes of mental retardation, but doctors find a...
  11. Mercuric chloride poisoning Mercuric chloride poisoning
    Mercuric chloride is a very poisonous form of mercury. It is a type of mercury salt. There are different types of mercury poisonings. This article discusses poisoning from swallowing mercuric chloride. See also: Button battery poisoning Dry cell battery poisoning Mercuric oxide poisoning Mer...
  12. Mercuric oxide poisoning Mercuric oxide poisoning
    Mercuric oxide is a form of mercury. It is a type of mercury salt. There are different types of mercury poisonings. This article discusses poisoning from swallowing mercuric oxide. See also: Button battery poisoning Dry cell battery poisoning Mercuric chloride poisoning Mercury poisoning (ge...
  13. Mercury Mercury
    This article discusses poisoning from mercury. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222. Poison...
  14. Mesenteric arteriography Mesenteric arteriography
    Mesenteric arteriography is an x-ray exam of the blood vessels that supply the abdominal area, including the small and large intestines. How the Test is Performed This test uses x-rays and a special dye (contrast material) to make blood vessels show up on the images. This test is done in a hospital...
  15. Mesenteric artery ischemia Mesenteric artery ischemia
    Mesenteric artery ischemia occurs when there is a narrowing or blockage of one or more of the three mesenteric arteries, the major arteries that supply the small and large intestines. Causes Narrowing of the arteries that supply blood to the intestine causes mesenteric ischemia. The arteries that s...