Acoustic neurinoma, also referred to as acoustic neuroma or vestibular schwannoma, is a non-cancerous tumor that may develop from an overproduction of Schwann cells that press on the hearing and balance nerves in the inner ear.
Acromegaly is a disorder of the pituitary gland which produces excess growth hormones and thus results in excessive growth, first in the hands and feet, as soft tissue begins to swell.
Actinic keratosis, also known as a solar keratosis, is a scaly or crusty bump that arises on the skin surface. The base may be light or dark, tan, pink, red, a combination of these or the same color as the skin. The scale or crust is horny, dry, and
Acute lymphocytic leukemia (ALL) is a cancer of the blood in which too many lymphocytes, a type of white blood cell, are produced by the bone marrow and by organs of the lymph system.
Acute myelogenous leukemia (AML) is a cancer of the blood in which too many granulocytes, a type of white blood cell, are produced in the bone marrow.
Acute spinal cord injury (SCI) is a traumatic injury that either results in a bruise (also called a contusion), a partial tear, or a complete tear (called a transection) in the spinal cord.
Angina pectoris (or simply angina) is recurring chest pain or discomfort that happens when some part of the heart does not receive enough blood and oxygen.
Tumors of the adrenal glands can cause many problems by excess secretion of certain adrenal-produced hormones, most often resulting in high blood pressure, which can be extreme.
African trypanosomiasis, also called African sleeping sickness, is a systemic disease caused by a parasite and transmitted by the bite of the tsetse fly. There are two types of the disease, named for the areas of Africa in which they are found: West
Alcohol-induced liver disease, as the name implies, is caused by excessive consumption of alcohol and is a common, but preventable, disease.
Hepatitis is the inflammation of the liver, resulting in liver cell damage and destruction. Alcoholic hepatitis is a complex problem and is a precursor to chronic liver disease and cirrhosis.
Thalassemia is an inherited disorder that affects the production of normal hemoglobin (a type of protein in red blood cells that carries oxygen to the tissues of the body).
Alzheimer's disease is a progressive, neurodegenerative disease that occurs when nerve cells in the brain die and often results in the following: impaired memory, thinking, and behavior, confusion, restlessness, personality and behavior changes, impa
Amyotrophic lateral sclerosis (ALS) is a neurological disorder characterized by progressive degeneration of nerve cells in the spinal cord and brain.
Folate deficiency is the lack of folic acid (one of the B vitamins) in the blood, which can cause a type of anemia known as megaloblastic (pernicious) anemia.
An aneurysm is a bulging, weakened area in the wall of a blood vessel resulting in an abnormal widening or ballooning greater than 50 percent of the normal diameter
Ankylosing spondylitis (AS) is a type of arthritis that affects the spine.
Aphasia is a language disorder caused by damage in a specific area of the brain that controls language ex
Aplastic anemia occurs when the bone marrow produces too few of all three types of blood cells: red blood cells, white blood cells, and platelets. A reduced number of red blood cells causes hemoglobin to drop. A reduced number of white blood cells ma
Arthritis and other rheumatic diseases are characterized by pain, swelling, and limited movement in joints and connective tissues in the body.
