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an abnormal condition in which tissues exhibit swelling (edema) because of accumulation of lymph
a type of lymphoma characterized as painless swelling of the lymph nodes in the neck, progressing to other regions
a local skin inflammation lasting a few hours or days after being exposed to the antigen (poison ivy)
Systematic lupus erythematosus
chronic inflammatory disease caused by a widespread attack of self antigens by the immune system (autoimmunity); characterized by a red rash on the face or other signs
abnormal spleen enlargement that can be caused by scarlet fever, syphilis or typhoid fever
Severe combined immune deficiency
nearly complete failure of the lymphocytes to develop properly, in turn causing failure of the immune system's defense of the body; very rare congenital immune disorder
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