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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «M»:

  1. Meningitis, benign recurrent aseptic Meningitis, benign recurrent aseptic
    Meningitis, benign recurrent aseptic: Recurring meningitis without identifiable cause that leaves no residual damage to the nervous system. Benign recurrent aseptic meningitis is also called Mollaret meningitis. The cause of benign recurrent aseptic meningitis is not known. Benign recurrent aseptic ...
  2. Meningitis, cryptococcal Meningitis, cryptococcal
    Meningitis, cryptococcal: Inflammation of the meninges due to infection with the fungal organism cryptococcus neoformans, which is found mainly in dirt and bird droppings. Most people have been exposed to this organism at some time, but normally it causes no problems. Often associated with AIDS...
  3. Meningitis, infectious Meningitis, infectious
    Meningitis, infectious: Meningitis caused by bacterial, viral, or protozoan infection. Most of the agents known to cause meningitis are infectious, but very few people exposed to them will get meningitis. Those at greatest danger include people with AIDS, infants, transplant patients, and other...
  4. Meningitis, Kernig sign of Meningitis, Kernig sign of
    Meningitis, Kernig sign of: This clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal cord, is tested for by having the person lie supine (flat on the back), flex the thigh so that it is at a right angle to the trunk, and completely extend the...
  5. Meningitis, meningococcal Meningitis, meningococcal
    Meningitis, meningococcal: Inflammation of the meninges (the membranes covering of the brain and spinal cord) due to infection with the meningococcus bacterium Neisseria meningitidis. Meningococcal meningitis typically starts like the flu with the sudden onset of an intense headache, fever, sore t...
  6. Meningitis, Mollaret Meningitis, Mollaret
    Meningitis, Mollaret: Benign recurrent aseptic meningitis. The cause of Mollaret meningitis is not known. Mollaret meningitis is distinguished from viral meningitis by its recurrent character with symptom-free intervals between episodes. Symptoms include headache, neckache, fever, and neck stiffness...
  7. Meningitis, neoplastic Meningitis, neoplastic
    Meningitis, neoplastic: A condition due to cancer that has spread from the original (primary) tumor to the meninges, the tissue covering the brain and spinal cord. The term is a misnomer because the condition is not inflammatory. It is more properly called meningeal carcinoma or meningeal metastase...
  8. Meningitis, tuberculous Meningitis, tuberculous
    Meningitis, tuberculous: See: Tuberculous meningitis....
  9. Meningitis, viral Meningitis, viral
    Meningitis, viral: Inflammation of the meninges (the tissues that cover the brain and spinal cord) caused by a virus, usually one of the enteroviruses such as the mumps virus or Coxsackievirus. Viral meningitis can be a complication the common childhood diseases, including chickenpox. Symptoms inc...
  10. Meningocele (MM) Meningocele (MM)
    Meningocele (MM):Protrusion of the membranes that cover the spine and part of the spinal cord through a bone defect in the vertebral column. MM is due to failure of closure during embryonic life of bottom end of the neural tube, the structure which gives rise to the central nervous system (the brain...
  11. Meningococcal infection Meningococcal infection
    Meningococcal infection: Infection with the bacterium Neisseria meningitidis. (Neisseria was formerly called Meningococcus and the term "meningococcal" is still entrenched.) Persons with a meningococcal infection may have any of several acute illnesses, including: meningitis and sepsis (blood infe...
  12. Meningococcal meningitis Meningococcal meningitis
    Meningococcal meningitis: Inflammation of the meninges (the membranes covering of the brain and spinal cord) due to infection with the meningococcus bacterium Neisseria meningitidis. Meningococcal meningitis typically starts like the flu with the sudden onset of an intense headache, fever, sore th...
  13. Meningococcal vaccine Meningococcal vaccine
    Meningococcal vaccine: A vaccine to prevent meningococcal infection, including meningococcal meningitis, an inflammation of the membranes that cover the brain and spinal cord. Meningococcal infection is caused by the bacterium Neisseria meningitidis and can be fatal. A meningococcal vaccine was li...
  14. Meningococcus Meningococcus
    Meningococcus: A type of bacteria now formally known as Neisseria meningitidis, which is responsible for a number of meningococcal diseases including epidemic bacterial meningitis, an inflammation of the coverings of the brain and spinal cord. In technical terms, the meningococcus (Neisseria meningi...
  15. Meningoencephalitis Meningoencephalitis
    Meningoencephalitis: Meningitis + encephalitis, inflammation of the meninges and brain. Called also: Encephalomeningitis....