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Drugs and diseases reference index

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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «L»:

  1. Low nasal bridge Low nasal bridge
    A low nasal bridge is a flattening of the top part of the nose. Considerations Decreased growth (hypoplasia) of the nasal bridge can occur with infections or genetic diseases. A decrease in the height of the nasal bridge is best seen from a side view of the face. Causes Cleidocranial dysostosis ...
  2. Low-residue fiber diet Low-residue fiber diet
    When you are on a low residue fiber diet, you will eat low-fiber foods that are easy for your body to digest. Eating these foods will slow down your bowel movements. This diet includes foods you are used to eating, like cooked vegetables, fruits, white breads, and meats. It does NOT include foods th...
  3. Low-salt diet Low-salt diet
    Your body needs salt, also called sodium, to work properly. Sodium helps your body control your blood pressure, blood volume, muscles and nerves, and more. But, too much salt can be bad for you. If you have high blood pressure or heart failure, your doctor may advise you to limit how much salt you e...
  4. Lower esophageal ring Lower esophageal ring
    A lower esophageal ring is an abnormal ring of tissue that forms where the esophagus (the tube from the mouth to the stomach) and stomach meet. Causes A lower esophageal ring is a matter of debate can be caused from swallowing dangerous acids or other corrosive materials. In some cases, it is a bi...
  5. Ludwig’s angina Ludwig’s angina
    Ludwig's angina is a bacterial infection of the floor of the mouth. Causes Ludwig's angina is a type of cellulitis that involves inflammation of the tissues of the floor of the mouth, under the tongue. It often occurs after an infection of the roots of the teeth (such as tooth abscess) or a mouth i...
  6. Lumbar MRI scan Lumbar MRI scan
    A lumbar magnetic resonance imaging (MRI) scan is a noninvasive way to create detailed pictures of the part of the spine that runs through the lower back. This area is called the lumbar spine. It consists of five vertebrae called L1 to L5. Unlike x-rays and computed tomographic (CT) scans, which use...
  7. Lumbar spine CT scan Lumbar spine CT scan
    A computed tomography (CT) scan of the lumbar spine is an imaging method that uses x-rays to create cross-sectional pictures of the lower back (lumbar spine). How the Test is Performed You will be asked to lie on a narrow table that slides into the center of the CT scanner. You will lie on your bac...
  8. Lumbosacral spine CT Lumbosacral spine CT
    A lumbosacral spine CT is a computed tomography scan of the lower spine and surrounding tissues. How the Test is Performed You will be asked to lie on a narrow table that slides into the center of the CT scanner. You will need to lie on your back for this test. Once inside the scanner, the machine'...
  9. Lumbosacral spine x-ray Lumbosacral spine x-ray
    A lumbosacral spine x-ray is a picture of the small bones (vertebrae) in the lower part of the spine (the lumbar region) and the sacrum, the area that connects the spine to the pelvis. How the Test is Performed The test is done in a hospital radiology department or your health care provider's offic...
  10. Lump in the abdomen Lump in the abdomen
    A lump in the abdomen is a soft bulge of tissue or a small, local area of swelling in the belly area. See also: Abdominal mass Causes Most often, a lump in the abdomen is caused by a hernia. An abdominal hernia occurs when there is an area where the muscles are weak. This allows the internal organ...
  11. Lumps in the breasts Lumps in the breasts
    There are many causes for lumps in the breast. These range from normal changes in your body to abnormal breast disease. Breast lumps are either benign (noncancerous) or malignant (cancerous). See also: Breast lumps and cancer Causes Some lumps are age-dependent. Newborn boys and girls both have lum...
  12. Lung cancer Lung cancer
    Lung cancer is cancer that begins in the lungs, the two organs found in the chest that help you breathe. The lungs are made up of areas called lobes. The right lung has three lobes; the left lung has two, so there's room for the heart. When you breathe, air goes through your nose, down your windpipe...
  13. Lung cancer - non-small cell Lung cancer - non-small cell
    Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. It usually grows and spreads more slowly than small cell lung cancer. There are three forms of NSCLC: Adenocarcinomas are often found in an outer area of the lung. Squamous cell carcinomas are usually found in the center of ...
  14. Lung cancer - small cell Lung cancer - small cell
    Small cell lung cancer (SCLC) is a fast-growing type of lung cancer. It spreads much more quickly than non-small cell lung cancer. There are three different types of small cell lung cancer: Small cell carcinoma (oat cell cancer) Mixed small cell/large cell carcinoma Combined small cell carcinoma M...
  15. Lung diffusion testing Lung diffusion testing
    Lung diffusion testing measures how well the lungs exchange gases. This is an important part of lung testing, because the major function of the lungs is to allow oxygen to "diffuse" or pass into the blood from the lungs, and to allow carbon dioxide to "diffuse" from the blood into the lungs. How th...