Diseases & Conditions


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Leukemia, Chronic Lymphocytic


Synonyms of Leukemia, Chronic Lymphocytic
  • CLL

Disorder Subdivisions



    General Discussion
    Chronic Lymphocytic Leukemia is a malignant blood disorder in which there is an increased number of white blood cells formed in the lymphoid tissue. This uncontrolled buildup and enlargement of lymphoid tissue can occur in various sites of the body such as the lymph nodes, spleen, bone marrow, and lungs. There are many different forms of Leukemia which are all characterized by an overabundance of white blood cells. In Chronic Lymphocytic Leukemia the disease occurs in the lymphoid tissue.

    The lymph vessels, which return fluids to the circulatory system, and the lymph nodes, which are a mass of tissue separated into compartments by connective tissue, make up the immune system. The lymph nodes serve as filters, removing foreign particles, tissue debris, and bacterial cells from the circulation. When this system is not working properly, the body's defenses cannot fight off foreign particles.

    In the majority of cases, Chronic Lymphocytic Leukemia is the result of a rapid production of B lymphocyte cells (a short-lived type of white blood cell that is responsible for the production of vertebrate serum proteins that include antibodies). A small percentage of Chronic Lymphocytic Leukemia cases stem from the overproduction of T lymphocyte cells (a type of white blood cell that have a long life and are important in the resistance of disease).



    Organizations related to Leukemia, Chronic Lymphocytic
    • American Cancer Society, Inc.
      1599 Clifton Road NE
      Atlanta GA 30329
      Phone #: 404-320-3333
      800 #: 800-227-2345
      e-mail: N/A
      Home page: http://www.cancer.org
    • Cancer Research UK
      PO Box 123
      London Intl WC2A 3PX
      Phone #: 020--72-42 0200
      800 #: N/A
      e-mail: N/A
      Home page: http://www.imperialcancer.co.uk
    • Cancer.Net
      American Society of Clinical Oncology
      Alexandria VA 22314
      Phone #: 571-483-1780
      800 #: 888-651-3038
      e-mail: contactus@cancer.net
      Home page: http://www.cancer.net/patient
    • Children's Leukemia Research Association
      585 Stewart Avenue
      Garden City NY 11530
      Phone #: 516-222-1944
      800 #: --
      e-mail: N/A
      Home page: http://www.childrensleukemia.org/index.html
    • Friends of Cancer Research
      2231 Crystal Drive
      Arlington VA 22202
      Phone #: 703-302-1503
      800 #: N/A
      e-mail: info@focr.org
      Home page: http://www.focr.org
    • Lance Armstrong Foundation
      PO Box 161550
      Austin TX 78716-1150
      Phone #: 512-236-8820
      800 #: 866-235-7205
      e-mail: N/A
      Home page: http://www.livestrong.org
    • Leukemia & Lymphoma Society
      1311 Mamaroneck Ave
      White Plains NY 10605
      Phone #: 914-949-5213
      800 #: 800-955-4572
      e-mail: infocenter@LLS.org
      Home page: http://www.LLS.org
    • MUMS (Mothers United for Moral Support, Inc) National Parent-to-Parent Network
      150 Custer Court
      Green Bay WI 54301-1243
      Phone #: 920-336-5333
      800 #: 877-336-5333
      e-mail: mums@netnet.net
      Home page: http://www.netnet.net/mums/
    • Madisons Foundation
      PO Box 241956
      Los Angeles CA 90024
      Phone #: 310-264-0826
      800 #: N/A
      e-mail: getinfo@madisonsfoundation.org
      Home page: http://www.madisonsfoundation.org
    • National Cancer Institute
      6116 Executive Blvd, MSC 8322, Room 3036A
      Bethesda MD 20892-8322
      Phone #: 301-435-3848
      800 #: 800-422-6237
      e-mail: N/A
      Home page: http://www.cancer.gov
    • OncoLink: The University of Pennsylvania Cancer Center Resource
      3400 Spruce Street
      Philadelphia PA 19104-4283
      Phone #: 215-349-5445
      800 #: --
      e-mail: editors@oncolink.upenn.edu
      Home page: http://www.oncolink.upenn.edu
    • Rare Cancer Alliance
      1649 North Pacana Way
      Green Valley AZ 85614
      Phone #: 520-625-5495
      800 #: --
      e-mail: sharon.lane@rare-cancer.org
      Home page: http://www.rare-cancer.org
    • UCSF Hemophilia Treatment Center
      400 Parnassus Ave.
      San Francisco CA 94143
      Phone #: 415-353-2986
      800 #: N/A
      e-mail: N/A
      Home page: http://www.ucsfhealth.org/adult/medical_services/blood/hemophilia/index.html
    • Wellness Community
      919 18th Street N.W.
      Washington DC 20006
      Phone #: 202-659-9709
      800 #: 888-793-9355
      e-mail: help@thewellnesscommunity.org
      Home page: http://www.thewellnesscommunity.org



    For a Complete Report

    This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html