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Cellulitis

Cellulitis is a common infection of the skin and the soft tissues underneath the skin. It occurs when bacteria invade broken or normal skin and start to spread under the skin and into the soft tissues.   This results in infection and inflammation. Inflammation is a process in which the body reacts to the bacteria. Inflammation may ...

Cervicitis

Cervicitis, a common infection of the lower genital tract, is the inflammation of thecervix (this is the neck and outlet of a woman's uterus).   Inflammation may be caused by infection from certain sexually transmitted diseases (STDs) or by injury to the cervix from a foreign object inserted in thevagina, from birth control ...

Cushing's Syndrome

Cushing's syndrome is a rare hormonal problem. It happens when there is too much of the hormone cortisol in your body.   Normally, cortisol levels increase through a chain reaction of hormones:     First, the hypothalamus in the brain makes a hormone called CRH (corticotropin-releasing hormone). Then, CRH ...

Cystic Fibrosis

Cystic fibrosis is a disease that causes mucus in the body to become thick and sticky. This glue-like mucus builds up and causes problems in many of the body's organs, especially the lungs and the pancreas.    People who have cystic fibrosis can have serious breathing problems and lung disease. They can also have problems ...

Brain Tumor

Brain tumors can be benign or malignant:   Benign brain tumors do not contain cancer cells. Usually, benign tumors can be removed, and they seldom grow back. The border or edge of a benign brain tumor can be clearly seen. Cells from benign tumors do not invade tissues around them or spread to other parts of the body. However, ...

Diphtheria

Diphtheria is an infectious disease caused by the bacterium Corynebacterium diphtheriae. This disease primarily affects the mucous membranes of the respiratory tract (respiratory diphtheria), although it may also affect the skin (cutaneous diphtheria) and lining tissues in the ear, eye, and the genital areas.   What is the history of ...

Dyspepsia

Dyspepsia is one of the most common ailments of the bowel (intestines), affecting an estimated 20% of persons in the United States. Perhaps only 10% of those affected actually seek medical attention for their dyspepsia. Dyspepsia is not a particularly good term for the ailment since it implies that there is "dyspepsia" or abnormal ...

Dystonia

The dystonias are movement disorders in which sustained muscle contractions cause twisting and repetitive movements or abnormal postures. The movements, which are involuntary and sometimes painful, may affect a single muscle; a group of muscles such as those in the arms, legs, or neck; or the entire body. Those with dystonia usually have normal ...

Edema

Edema is observable swelling from fluid accumulation in body tissues. Edema most commonly occurs in the feet and legs, where it is referred to as peripheral edema. The swelling is the result of the accumulation of excess fluid under the skin in the spaces within the tissues. All tissues of the body are made up of cells and connective tissues ...

Emphysema

Emphysema is a long-term, progressive disease of the lungs that primarily causes shortness of breath due to over-inflation of the alveoli (air sacs in the lung). In people with emphysema, the lung tissue involved in exchange of gases (oxygen and carbon dioxide) is impaired or destroyed. Emphysema is included in a group of diseases called ...

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