Diseases & conditions A-Z List
Diseases & Conditions A-Z List - «M»:
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Movement - uncontrollable
Uncontrollable movements are slow, twisting, continuous, and involuntary movements of the arms, legs, face, neck, or other parts of the body.
See also: Tardive dyskinesia
Considerations
This condition is usually a lifelong problem that begins during childhood and is characterized by involuntary ne...
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Movement - uncontrolled or slow
Uncontrolled or slow movement is defined as a problem with muscle tone, usually in large muscle groups, that leads to slow involuntary contractions of the head, limbs, trunk, or neck.
See also:
Movement - unpredictable or jerky
Stereotypic movement disorder
Tremor
Uncoordinated movement
Unco...
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Movement - uncoordinated
Uncoordinated movement is muscle control problem or an inability to finely coordinate movements, which results in a jerky, unsteady, to-and-fro motion of the middle of the body (trunk) and unsteady gait (walking style). The condition is called ataxia.
Considerations
Smooth graceful movement results...
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Movement - unpredictable or jerky
Jerky body movements is a condition in which uncontrolled, purposeless, rapid motions interrupt normal movement or posture.
Considerations
Typical movements of chorea (called tics) include facial grimacing, raising and lowering the shoulders, bending and extending the fingers and toes. The conditio...
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MRI
Magnetic resonance imaging (MRI) is a noninvasive way to take pictures of the body.
Unlike x-rays and computed tomographic (CT) scans, which use radiation, MRI uses powerful magnets and radio waves. The MRI scanner contains the magnet. The magnetic field produced by an MRI is about 10 thousand times...
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MRSA
Methicillin-resistant Staphylococcus aureus (MRSA) is a bacterial infection that is highly resistant to some antibiotics.
Causes
MRSA is a strain of Staphylococcus aureus (S. aureus) bacteria. S. aureus is a common type of bacteria that normally live on the skin and sometimes in the nasal passages ...
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Mucormycosis
Mucormycosis is a fungal infection of the sinuses, brain, or lungs that occurs primarily in people with immune disorders.
Causes
Mucormycosis is caused by common fungi frequently found in the soil and in decaying vegetation. Most individuals are exposed to these fungi on a daily basis -- but people...
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Mucosa
Mucosa is moist tissue that lines some organs and body cavities throughout the body, including your nose, mouth, lungs, and digestive tract. Glands along the mucosa release mucus (a thick fluid).
Alternative Names
Mucous membrane...
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Mucous cyst
A mucous cyst is a painless, thin sac on the inner surface of the lips. It contains clear fluid.
Causes
Mucous cysts are common. They are painless but can be bothersome because you are so aware of the bumps in your mouth. The cysts are thought to be caused by sucking the lip membranes between...
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Multi-infarct dementia
Multi-infarct dementia (MID) is a form of dementia caused by a series of small strokes.
Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, language, judgment, and behavior.
Causes
Multi-infarct dementia (MID) is the second most common cause of demen...
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Multifocal atrial tachycardia
Multifocal atrial tachycardia is a rapid heart rate that occurs when too many signals (electrical impulses) are sent from the upper heart to the lower heart.
Causes
The human heart gives off electrical impulses, or signals, which tell it to beat. Normally, these signals begin in an area of the uppe...
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Multiple endocrine neoplasia (MEN) I
Multiple endocrine neoplasia (MEN) type I is an inherited disorder in which one or more of the endocrine glands are overactive or form a tumor. Endocrine glands most commonly involved include:
Pancreas
Parathyroid
Pituitary
Causes
MEN I is caused by a defect in a gene that carries the code for a ...
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Multiple endocrine neoplasia (MEN) II
Multiple endocrine neoplasia, type II (MEN II) is an inherited disorder in which one or more of the endocrine glands are overactive or form a tumor. Endocrine glands most commonly involved include:
Adrenal (about half the time)
Parathyroid (20% of the time)
Thyroid (almost all of the time)
See als...
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Multiple lentigines syndrome
Multiple lentigines syndrome is an inherited disorder identified by an increased number of lentigines (freckle-like spots).
Causes
Multiple lentigines syndrome is inherited as an autosomal dominant trait. People with this condition have large numbers of lentigines. Lentigines are skin markings t...
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Multiple myeloma
Multiple myeloma is cancer of the plasma cells in bone marrow.
Causes
Plasma cells help the body's immune system fight disease by producing proteins called antibodies. In multiple myeloma, plasma cells grow out of control in the bone marrow and form tumors in the areas of solid bone.
The growth of ...
