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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «G»:

  1. Giant congenital nevus Giant congenital nevus
    A congenital pigmented or melanocytic nevus is a dark colored, often hairy patch of skin that is present at birth. Smaller in infants and children, they usually continue to grow along with the child. A giant pigmented nevus is larger than 8 inches once it stops growing. Causes Bathing trunk nevi ar...
  2. Giardiasis Giardiasis
    Giardiasis is an infection of the small intestine caused by a microscopic organism (protozoa), Giardia lamblia. Causes Giardiasis outbreaks can occur in communities in both developed and developing countries where water supplies become contaminated with raw sewage. It can be contracted by drinking ...
  3. Gigantism Gigantism
    Gigantism is abnormally large growth due to an excess of growth hormone during childhood, before the bone growth plates have closed. Causes The most common cause of too much growth hormone release is a noncancerous (benign) tumor of the pituitary gland. Other causes include: Carney complex McCune...
  4. Gilbert's disease Gilbert's disease
    Gilbert's disease is a common disorder passed down through families.It affects the way bilirubin is processed by the liver, and causes jaundice. Causes Gilbert's disease affects up to 10% of people in some Caucasian populations. The condition is usually noncancerous (benign). Symptoms Fatigue Yell...
  5. Gilles de la Tourette syndrome Gilles de la Tourette syndrome
    Gilles de la Tourette syndrome is a disorder of the nervous system that causes a person to make repeated and uncontrolled (involuntary) rapid movements and sounds (vocalizations) called tics. The disorder is commonly called Tourette syndrome. See also: Chronic motor tic disorder Facial tics Tr...
  6. Gingivitis Gingivitis
    Gingivitis is inflammation of the gums (gingiva). Causes Gingivitis is a form of periodontal disease. Periodontal disease involves inflammation and infection that destroys the tissues that support the teeth, including the gums, the periodontal ligaments, and the tooth sockets (alveolar bone). Gingi...
  7. Gingivostomatitis Gingivostomatitis
    Gingivostomatitis is a viral or bacterial infection of the mouth and gums that leads to swelling and sores. Causes Gingivostomatitis is common, particularly among children. It may occur after infection with the herpes simplex virus type 1 (HSV-1), which also causes cold sores. See: Herpetic stomati...
  8. Glanzmann’s disease Glanzmann’s disease
    Glanzmann’s disease is a rare disorder of blood platelets, which results in easy bruising and nosebleeds. Causes Glanzmann’s disease is caused by lack of a protein required for platelets to clump together (aggregate) normally. The condition is congenital, which means it is present fro...
  9. Glaucoma Glaucoma
    Glaucoma refers to a group of eye conditions that lead to damage to the optic nerve, the nerve that carries visual information from the eye to the brain. In many cases, damage to the optic nerve is due to increased pressure in the eye, also known as intraocular pressure (IOP). Causes Glaucoma is t...
  10. Glomerular filtration rate Glomerular filtration rate
    Glomerular filtration rate (GFR) is a test used to check how well the kidneys are working. Specifically, it estimates how much blood passes through the tiny filters in the kidneys, called glomeruli, each minute. See also: Creatinine - clearance Creatinine - serum Creatinine - urine How the ...
  11. Glomerulonephritis Glomerulonephritis
    Glomerulonephritis is a type of kidney disease in which the part of your kidneys that helps filter waste and fluids from the blood is damaged. Causes Glomerulonephritis may be caused by specific problems with the body's immune system. Often, the precise cause of glomerulonephritis is unknown. Damag...
  12. Glomus jugulare tumor Glomus jugulare tumor
    A glomus jugulare tumor is a tumor of a part of the temporal bone in the skull. This tumor can affect the ear, upper neck, base of the skull, and the surrounding blood vessels and nerves. Causes A glomus jugulare tumor grows in the temporal bone of the skull, in an area called the jugular foramen. ...
  13. Glomus tympanum tumor Glomus tympanum tumor
    A glomus tympanum tumor is a tumor of the middle ear and bone behind the ear (mastoid). Causes A glomus tympanum tumor grows in the temporal bone of the skull, behind the ear drum (tympanic membrane). This area contains nerve fibers (glomus bodies) that normally respond to changes in body temperatu...
  14. Glossitis Glossitis
    Glossitis is a condition in which the tongue is swollen and changes color. Finger-like projections on the surface of the tongue (called papillae) are lost, causing the tongue to appear smooth. See also: Geographic tongue Causes Changes in the appearance of the tongue may be a primary condition (no...
  15. Glossopharyngeal neuralgia Glossopharyngeal neuralgia
    Glossopharyngeal neuralgia is a condition in which there are repeated episodes of severe pain in the tongue, throat, ear, and tonsils, which can last from a few seconds to a few minutes. Causes Glossopharyngeal neuralgia is believed to be caused by irritation of the ninth cranial nerve, called the ...