Drugs Information Online
Drugs and diseases reference index

Drugs and diseases reference index
Search
EN

Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «L»:

  1. Leydig cell tumor Leydig cell tumor
    A Leydig cell tumor is a tumor of the testicle. It develops from Leydig cells -- the cells in the testicles that release the male hormone, testosterone. Causes The cause of this tumor is unknown. There are no known risk factors for getting this tumor. Unlike germ cell tumors of the testicles, this ...
  2. LH blood test LH blood test
    The LH blood test measures the amount of luteinizing hormone (LH). LH is a hormone released by the pituitary gland. In women, an increase in LH levels at mid-cycle causes ovulation. In men, LH stimulates production of testosterone. How the Test is Performed Blood is drawn from a vein, usually from ...
  3. LH response to GnRH LH response to GnRH
    LH response to GnRH is a blood test to indirectly determine the pituitary gland's ability to appropriately respond to gonadotropin releasing hormone (GnRH), a hormone produced in the hypothalamus. How the Test is Performed A blood sample is drawn prior to an injection of GnRH. After a specified tim...
  4. LH urine test (home test) LH urine test (home test)
    An LH urine test detects a rise in lutenizing hormone (LH). Such a rise, or surge, signals the ovary to release the egg. This at-home test is often used by women to help predict ovulation. How the Test is Performed Ovulation prediction test kits usually come with five to seven sticks. You may need ...
  5. Lichen planus Lichen planus
    Lichen planus is a disease in which there is an itchy, swollen rash on the skin or in the mouth. Causes The exact cause of lichen planus is unknown. However, it is likely to be related to an allergic or immune reaction. Risks include: Exposure to medications, dyes, and other chemical substances (...
  6. Lichen simplex chronicus Lichen simplex chronicus
    Lichen simplex chronicus is a skin disorder that leads to chronic itching and scratching. Causes This disorder may occur with: Eczema (atopic dermatitis) Psoriasis Nervousness, anxiety, depression, and other psychologic disorders It is common in children, who chronically scratch insect bites...
  7. Lighter fluid poisoning Lighter fluid poisoning
    Lighter fluid is a flammable liquid found in cigarette lighters and other types of lighters. Lighter fluid poisoning occurs when someone swallows this substance. 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 sho...
  8. Lily of the valley Lily of the valley
    Lily of the valley is a flowering plant. Lily of the valley poisoning occurs when someone eats parts of this plant. 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 ...
  9. Limb plethysmography Limb plethysmography
    Limb plethysmography is a test that compares blood pressure in the legs and arms. How the Test is Performed This test may be done in the health care provider's office or in a hospital. You will be asked to lie in a partially propped-up position. Three blood pressure cuffs are wrapped snugly around ...
  10. Limb-girdle muscular dystrophies Limb-girdle muscular dystrophies
    Limb-girdle muscular dystrophies include at least 18 different inherited disorders, which first affect the muscles around the shoulder girdle and hips. These diseases get worse, and may eventually involve other muscles. Causes Limb-girdle muscular dystrophies are a large group of genetic diseases i...
  11. Limited range of motion Limited range of motion
    Limited range of motion is a reduction in the normal distance and direction through which a joint can move. Considerations Range of motion is the distance and direction of movement of a joint. Limited range of motion is a term meaning that a specific joint or body part cannot move through its norma...
  12. Lipase test Lipase test
    Lipase is a protein (enzyme) released by the pancreas into the small intestines. It triggers the breakdown of fat into fatty acids. This article discusses the test to measures the amount of the lipase in the blood. How the Test is Performed Blood is typically drawn from a vein, usually from the ins...
  13. Lipofuscin Lipofuscin
    Lipofuscin is a brownish pigment left over from the breakdown and absorption of damaged blood cells. Lipofuscin is found in heart muscle and smooth muscles and is also called the aging pigment. ...
  14. Lipoprotein-a Lipoprotein-a
    Lipoproteins are molecules made of proteins and fat. They carry cholesterol and similar substances through the blood. A blood test can be done to measure a specific type of lipoprotein called lipoprotein-a, or Lp(a). Lp(a) is considered a risk factor for heart disease. How the Test is Performed Blo...
  15. Liposuction Liposuction
    Liposuction is the removal of excess body fat by suction using special surgical equipment. A plastic surgeon typically does the surgery. Description Liposuction is a popular type of cosmetic surgery. It removes unwanted deposits of excess fat, to improve body appearance and to smooth irregular or ...