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Erythematous
Erythematous Redness of the skin caused by congestion of the capillaries, often due to inflammation or infection.
RELATED TERMS--------------------------------------
Skin
Skin is an organ of the integumentary system; which is composed of a layer of tissues that protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion (through sweat).
Capillaries
Tiny blood vessels between arteries and veins that distribute oxygen-rich blood to the body.
Inflammation
A reaction to an injury to the body - by infection, chemicals or physical agents. The symptoms can be - depending on the location of the injury- redness, swelling, heat and pain. The purpose of the inflammation is to dilute and destroy the agent causing the inflammation. To do this, the immune system starts a cascade of actions that causes active cells to gather at the affected location. It is these cells and fluids that cause the redness, swelling, heat and pain.
Infection
Anything that invades the body and reproduces. Infections can be bacteria, protozoa, fungi, or viruses. Bacteria and fungi are one celled creatures that cause many infections including strep throat, bladder infections, and some lung infections. Fungi cause “athlete’s foot” and thrush, an infection in the mouth. Protozoa are small organisms with many cells that can cause infections in the guts or in the lungs. Most healthy people do not get protozoal infections, but people with suppressed immune systems can. Viruses are not really organisms; they are tiny particles that can live only inside another cell. They reproduce by taking over a cell and causing that cell to make more virus particles, rather than doing what the cell is supposed to do. Viruses cause most colds and flu cases.
SIMILAR TERMS--------------------------------------
Erythema
Redness of the skin.
Erythema chronicum migrans
Spreading annular rash which appears at the site of tick-bite in Lyme disease.
Erythema dose
The amount of radiation which, applied to the skin, makes it turn temporarily red (erythematous).
Erythema infectiosum
Last of five childhood diseases to be discovered, including scarlet fever, measles, rubella, and roseola.Mild infection characterized by fever and a bright red rash on the cheeks.
Erythema marginatum
Rash occurring in rheumatic fever.
Erythema multiforme
An eruption of flat or raised spots of skin as a result of hypersensitivity to certain drugs or allergies.
Erythema nodosum
Red tender subcutaneous swellings, usually found on the lower limbs. Often associated with an asymmetrical, predominantly large joint arthropathy. Sarcoidosis, streptococcal infection and tuberculosis are the commonest triggers, but there are a number of others.
Erythra-derm
Erythra-derm is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin.
Erythrasma
A chronic superficial slowly spreading skin infection, especially in the folds of the body and webs between the toes, caused by a bacterium called Corynebacterium minutissimum. Erythrasma most often affects adults, especially those with diabetes, and people in the tropics.
Erythro-statin
Erythro-statin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin.
Erythrocin
Erythrocin is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin lactobionate.
Erythrocin stearate
Erythrocin stearate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin stearate.
Erythrocyanosis
Reddish discoloration and swelling of the limbs in response to cold. Erythrocyanosis is particularly common in children and more common in women than men.
Erythrocyte
An erythrocyte is more commonly known as a red blood cell, which is the most numerous type of blood cell. Erythrocytes contain the red pigment hemoglobin and are responsible for oxygen transport. In humans, the number of erythrocytes in the blood varies between 4.5 and 5.5 million per cubic millimeter. They survive for about four months and are then destroyed in the spleen and liver.
Erythrocyte (red blood cell, red cell, red corpuscle)
Red blood cell that delivers oxygen to tissues and removes carbon dioxide and other waste products.
Erythrocyte sedimentation rate
blood test that measures the speed at which red blood cells settle on the bottom of a test tube; high sedimentation rate signals possible inflammatory disease.
Erythrodermic psoriasis
A particularly inflammatory form of psoriasis that often affects most of the body surface. It is the least common form of psoriasis and most commonly appears on people who have unstable plaque psoriasis, where lesions are not clearly defined. The erythrodermic form of psoriasis is characterized by periodic, widespread, fiery redness of the skin. The erythema (reddening) and exfoliation (shedding) of the skin are often accompanied by severe itching and pain. Swelling may also develop.
Erythroleukemia
A form of acute myeloid leukemia (AML) involving the cells that give rise to the erythrocytes (the red blood cells). In this type of leukemia, the body produces large numbers of abnormal, immature red blood cells. Erythroleukemia is classified as acute nonlymphocytic leukemia (ANLL) of the M6 type.
Erythromycin
An antibiotic derived from the bacterium Streptomyces erythreus which is especially effective against gram positive bacteria. This antibiotic is often used to treat people who are allergic to penicillin, to treat penicillin-resistant infections and acne.
Erythromycin and benzoyl peroxide
Erythromycin and benzoyl peroxide is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): benzoyl peroxide; erythromycin.
Erythromycin estolate
Erythromycin estolate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin estolate.
Erythromycin ethylsuccinate
Erythromycin ethylsuccinate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin ethylsuccinate.
Erythromycin ethylsuccinate and sulfisoxazole acetyl
Erythromycin ethylsuccinate and sulfisoxazole acetyl is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin ethylsuccinate; sulfisoxazole acetyl.
Erythromycin lactobionate
Erythromycin lactobionate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin lactobionate.
Erythromycin stearate
Erythromycin stearate is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): erythromycin stearate.
Erythrophobia
An abnormal and persistent fear of blushing. Sufferers of erythrophobia experience undue anxiety even though they realize their fear is irrational. Their anxiety results from worry about being the focus of attention and the subject of embarrassment. Attempts to suppress blushing often have the opposite effect. Sufferers of erythrophobia tend to avoid social gatherings and workplace projects that require them to interact with, or speak before, groups of co-workers.
Erythroplakia
A reddened patch with a velvety surface found in the mouth.
Erythropoiesis
The formation of red blood cells.
Erythropoietin (EPO)
A hormone produced by the kidney that promotes the formation of red blood cells in the bone marrow. EPO is a glycoprotein (a protein with a sugar attached to it). Human EPO has a molecular weight of 34,000.
Erythropoietin test
A test of the hormone erythropoietin (EPO) in blood. An abnormal level of EPO may mean bone marrow or kidney disease or EPO abuse.
PREVIOUS AND NEXT TERMS--------------------------------------
Ependymoma
Ependymal tumors are tumors that begin in the ependyma, the cells that line the passageways in the brain where special fluid that protects the brain and spinal cord (called cerebrospinal fluid) is made and stored. There are different kinds of ependymal tumors, which are defined by how the cells look under a microscope.
Esophageal cancer
Esophageal cancer is cancer of the esophagus. The esophagus is a hollow tube that carries food and liquids from the throat to the stomach. When a person swallows, the muscular walls of the esophagus contract to push food down into the stomach. Glands in the lining of the esophagus produce mucus, which keeps the passageway moist and makes swallowing easier. The esophagus is located just behind the trachea (windpipe). In an adult, the esophagus is about 10 inches (25 cm) long.
Epilepsy
Sudden and recurrent disturbances in mental function, state of consciousness, sensory activity, or movements of the body, caused by paroxysmal malfunction of cerebral nerve cells. Epilepsy includes generalized convulsions in which there is sudden unconsciousness with falling and shaking of limbs, momentary lapses of awareness, and local movements and sensations in parts of the body, as well as other types of activity that may include bizarre automatic behaviour, strange memories, illusory and hallucinatory experiences, and changes in mood.
Eating disorders
A group of disorders in which there are significant disturbances in eating. Two common examples are Anorexia Nervosa, a refusal to maintain an acceptable body weight for one’s age and height: and Bulimia Nervosa, uncontrollable binge eating which may be followed by purging the food through self-induced vomiting, laxatives or diuretics.
Emotional disorders
A psychological disorder characterized by maladjustive emotional reactions such as irrational or uncontrollable fears, persistent anxiety, or extreme hostility.
Erythematous
Epinephrine
One of two chemicals (the other is norepinephrine) released by the adrenal gland that increases the speed and force of heart beats. It dilates the airways to improve breathing and narrows blood vessels in the skin and intestine so that an increased flow of blood reaches the muscles and allows them to cope with the demands of exercise.
Endoplasmic reticulum
A network or system of folded membranes and interconnecting tubules distributed within the cytoplasm of eukaryotic cells. The membranes form enclosed or semienclosed spaces. The endoplasmic reticulum functions in storage and transport, and as a point of attachment of ribosomes during protein synthesis.
Erythromycin
An antibiotic derived from the bacterium Streptomyces erythreus which is especially effective against gram positive bacteria. This antibiotic is often used to treat people who are allergic to penicillin, to treat penicillin-resistant infections and acne.
Emphysema
Lung disease where the alveoli -parts of the lungs where gas is exchanged- have lost their elasticity. Breathing becomes increasingly difficult, and emphysema patients have to use other muscles to breathe out. The main cause of emphysema is smoking.
Earache
Any ache or pain arising in the ear. Technically it may be called otalgia or otodynia.
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