Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «L»:
Lyme disease: Lyme disease is a bacterial
illness caused by a bacterium called a "spirochete." Lyme
disease is spread by ticks when they bite the skin. Lyme
disease can cause abnormalities in the skin, joints, heart
and nervous system.
Interestingly, the disease only became apparent in 1975
Lymph: An almost colorless fluid that travels through
vessels called lymphatics in the lymphatic system and carries cells
that help fight infection and disease....
Lymph gland: See Lymph node....
Lymph node: Also sometimes
referred to as lymph glands, lymph nodes are small rounded or bean-shaped masses of lymphatic tissue
surrounded by a capsule of connective tissue. Lymph nodes are located in many places in the lymphatic system
throughout the body. Lymph nodes filter the lymphatic fluid ...
Lymph node, sentinel
Lymph node, sentinel: The first lymph node ("gland") to receive lymphatic drainage from a tumor.
Which lymph node is the sentinel node for a given tumor is determined by injecting around the tumor a tracer substance that will travel through the lymphatic system to the first draining (sentinel) nod...
Cat scratch disease, a mild flu-like infection, with swollen lymph nodes (lymphadenitis) and mild fever of short duration, due to cat scratches, especially from kittens. There is usually a little bump (a papule) which may be pus-filled (a pustule) at the site of the scratch....
Lymphadenopathy: Abnormally enlarged lymph nodes. Commonly called "swollen glands."
The term "lymphadenopathy" is not as tough as it looks. It is made up of three words: lymph + adeno- (meaning gland) + -pathy (meaning disease) = lymph gland disease. Since most diseased lymph nodes are enlarged, the...
Lymphadenopathy virus: Another
name for the human immunodeficiency virus (HIV), the cause
of AIDS. HIV has also been called the human lymphotropic
virus type III and the lymphadenopathy-associated virus
and the lymphadenopathy virus. No matter what name is
applied, it is a retrovirus. (A re...
Another name for the human immunodeficiency virus (HIV)
that causes AIDS. Please see: Lymphadenopathy
Lymphangiogram: X-rays of the lymphatic system. A dye is injected
to outline the lymphatic vessels and organs. ...
Lymphangioleiomyomatosis: A lung disease characterized by an unusual
type of muscle cell that invades the tissue of the lungs, including the airways,
blood vessels, and lymph vessels. Over time, these muscle cells form into
bundles and grow into the walls of the airways and blood and lymph vessel...
Lymphangioma: A structure consisting of a collection of
blood vessels and lymph vessels that are overgrown and clumped together. Depending on
their nature, these structures may grow slowly or quickly. They can cause problems because
of their location. For example, a lymphangioma around the voicebox ...
Lymphangitis: The red streaking and gland (lymph node) swelling in the
area of an injury especially on the extremities. It is usually caused by a
bacterial infection with Streptococcus. The bacteria enter the body
through a cut, scrape, bite or wound of some sort. The bacteria can get into the
Lymphatic: 1. One of the lymphatics, vessel that convey the lymph fluid.
2. Pertaining to the lymph, lymphoid
tissue, or lymphocytes.
3. Lacking energy. Sluggish.
From the Latin lympha (water or water goddess), from the Greek nymphe (nymph)....
Lymphatic edema: See: Lymphedema>....