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Glioblastoma
Glioblastoma is an aggressive primary brain cancer that can grow into nearby brain tissue. Glioblastoma multiforme is an older name for this…
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Gliomas
Gliomas are tumors that begin in glial cells, which support nerve cells in the brain or spinal cord. Some gliomas grow slowly,…
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Glomerulonephritis
Glomerulonephritis is inflammation of the glomeruli, the tiny blood-filtering units inside the kidneys. This inflammation can make it harder for the kidneys…
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Gonococcal Infection
Gonococcal infection is an infection caused by the bacterium Neisseria gonorrhoeae, commonly called gonorrhea. It can affect the urethra, cervix, vagina, rectum,…
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Gout
Gout is a common form of inflammatory arthritis caused by deposits of urate crystals in and around a joint. It often affects…
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Graft Disease
Graft disease usually refers to graft-versus-host disease (GVHD), a complication that can occur after an allogeneic stem cell or bone marrow transplant.…
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Graves Disease
Graves disease is an autoimmune condition that causes the thyroid gland to become overactive. The immune system mistakenly stimulates the thyroid, leading…
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Growth Hormone Deficiency
Growth hormone deficiency occurs when the pituitary gland does not make enough growth hormone. Growth hormone helps regulate height in children and…
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Gynecomastia
Gynecomastia is a noncancerous enlargement of male breast gland tissue caused by an imbalance between estrogen and testosterone effects. It can affect…
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Hairy Leukoplakia
Hairy leukoplakia is a usually painless white, ridged, or hairy-looking patch that develops most often along the side of the tongue. It…
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Hand Eczema
Hand eczema is inflammation of the skin on the hands. It may cause dryness, itching, redness, scaling, painful cracks, or small blisters.…
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Hashimoto Thyroiditis
Hashimoto thyroiditis is an autoimmune condition in which the immune system mistakenly attacks thyroid tissue. Over time, this inflammation and damage can…
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Head And Neck Cancer
Head and neck cancer is a group of malignant tumors that can develop in the mouth, throat, nose, sinuses, voice box, salivary…
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Hearing Loss
Hearing loss means a reduced ability to hear sounds or understand speech. It can range from mild difficulty hearing soft sounds to…
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Heart Attack
A heart attack happens when blood flow to part of the heart muscle becomes blocked, usually because of a clot in a…
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Heart Failure
Heart failure means the heart cannot pump or fill well enough to meet the body's needs. As a result, the body may…
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Heart Valve Disease
Heart Valve Disease is a condition in which one or more of the heart valves do not open or close normally. A…
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Heat Exhaustion
Heat exhaustion is a heat-related illness that develops when the body cannot cool itself effectively. Excessive heat, sweating, and fluid loss can…
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Hemochromatosis
Hemochromatosis is a condition in which the body absorbs too much iron from food and stores it in tissues and organs. Inherited…
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Hemophilia
Hemophilia is an inherited bleeding disorder in which the blood does not clot normally. Hemophilia A involves low or missing clotting factor…
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Hepatic Adenoma
A hepatic adenoma, also called a hepatocellular adenoma or liver adenoma, is a usually benign growth made up of liver cells. Many…
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Hernias
Hernias happen when tissue or an organ pushes through a weakened area of muscle or connective tissue. They commonly appear in the…
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Herniated Disc
A herniated disc happens when the soft inner material of a spinal disc pushes through a weakened or torn outer layer. This…
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Hidradenitis Suppurativa
Hidradenitis suppurativa is a chronic inflammatory skin condition that causes recurring painful lumps, nodules, and abscesses in areas where skin rubs together.…
