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Amyloidosis Amyloidosis Amyloidosis is a rare disease in which abnormally folded proteins form amyloid fibrils that accumulate in various tissues and organs, sometimes leading to organ dysfunction, organ failure, and... read more
Cancer (lymphoma Overview of Lymphoma Lymphomas are cancers of lymphocytes, which reside in the lymphatic system and in blood-forming organs. Lymphomas are cancers of a specific type of white blood cells known as lymphocytes. These... read more , leukemia Overview of Leukemia Leukemias are cancers of white blood cells or of cells that develop into white blood cells. White blood cells develop from stem cells in the bone marrow. Sometimes the development goes awry... read more , or various solid tumors)
Diabetes mellitus Diabetes Mellitus (DM) Diabetes mellitus is a disorder in which the body does not produce enough or respond normally to insulin, causing blood sugar (glucose) levels to be abnormally high. Urination and thirst are... read more *
Some glomerulonephritis Glomerulonephritis Glomerulonephritis is a disorder of glomeruli (clusters of microscopic blood vessels in the kidneys with small pores through which blood is filtered). It is characterized by body tissue swelling... read more (including rapidly progressive glomerulonephritis caused by streptococcal or staphylococcal infection)
Obesity Obesity Obesity is excess body weight. Obesity is influenced by a combination of factors, which usually results in consuming more calories than the body needs. These factors may include physical inactivity... read more *
Preeclampsia Preeclampsia and Eclampsia Preeclampsia is new high blood pressure or worsening of existing high blood pressure that is accompanied by excess protein in the urine and that develops after the 20th week of pregnancy. Eclampsia... read more (also called toxemia of pregnancy)
Protozoal infections (usually schistosomiasis Schistosomiasis Schistosomiasis is infection caused by certain flatworms (flukes), called schistosomes. People acquire schistosomiasis by swimming or bathing in fresh water that is contaminated with the flukes... read more or malaria Malaria Malaria is infection of red blood cells with one of five species of Plasmodium, a protozoan. Malaria causes fever, chills, sweating, a general feeling of illness (malaise), and sometimes diarrhea... read more )
Systemic lupus erythematosus Systemic Lupus Erythematosus (SLE) Systemic lupus erythematosus is a chronic autoimmune inflammatory connective tissue disorder that can involve joints, kidneys, skin, mucous membranes, and blood vessel walls. Problems in the... read more (lupus)*
Vasculitic disorders (immunoglobulin A–associated vasculitis Immunoglobulin A–Associated Vasculitis Immunoglobulin A–associated vasculitis (formerly called Henoch-Schönlein purpura) is inflammation of mainly small blood vessels that most often occurs in children. A rash of reddish purple bumps... read more , granulomatosis with polyangiitis Granulomatosis with Polyangiitis Granulomatosis with polyangiitis often begins with inflammation of small- and medium-sized blood vessels and tissues in the nose, sinuses, throat, lungs, or kidneys. The cause is unknown. The... read more , or microscopic polyangiitis Microscopic Polyangiitis Microscopic polyangiitis is inflammation of mainly small blood vessels throughout the body. Symptoms vary depending on which organs are affected. People have a fever, lose weight, and have achy... read more )
Viral infections (particularly hepatitis B Overview of Acute Viral Hepatitis Acute viral hepatitis is inflammation of the liver caused by infection with one of the five hepatitis viruses. In most people, the inflammation begins suddenly and lasts only a few weeks. Symptoms... read more ,* hepatitis C Overview of Acute Viral Hepatitis Acute viral hepatitis is inflammation of the liver caused by infection with one of the five hepatitis viruses. In most people, the inflammation begins suddenly and lasts only a few weeks. Symptoms... read more ,* or human immunodeficiency virus [HIV] Human Immunodeficiency Virus (HIV) Infection Human immunodeficiency virus (HIV) infection is a viral infection that progressively destroys certain white blood cells and can cause acquired immunodeficiency syndrome (AIDS). HIV is transmitted... read more *)
Heroin taken intravenously
Nonsteroidal anti-inflammatory drugs (NSAIDs)*
Poison ivy and poison oak
* Asterisks indicate the most common causes.