Erythema marginatum

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Erythema Marginatum

Erythema marginatum (pronunciation: /ɛrɪˈθiːmə mɑːrdʒɪˈneɪtəm/) is a type of skin rash often associated with rheumatic fever. It is characterized by pink or red, ring-shaped patches that appear primarily on the trunk and limbs, but not on the face.

Etymology

The term "erythema marginatum" is derived from the Greek word "erythros" meaning red, and the Latin "marginatum" meaning bordered. This refers to the characteristic appearance of the rash, which has a clear center and a distinct, reddened border.

Symptoms

Erythema marginatum typically begins as pink spots on the skin, which gradually spread outwards to form a ring. The center of the ring may appear clear or slightly pale, and the border of the ring is often raised and red. The rash is usually not itchy or painful, but it may be slightly warm to the touch. Other symptoms of rheumatic fever, such as joint pain, fever, and heart problems, may also be present.

Causes

Erythema marginatum is most commonly caused by rheumatic fever, a complication of streptococcal throat infection. The rash is thought to be a result of the body's immune response to the infection.

Diagnosis

Diagnosis of erythema marginatum is usually based on the characteristic appearance of the rash, along with other symptoms of rheumatic fever. Blood tests may be done to confirm the presence of a streptococcal infection.

Treatment

Treatment for erythema marginatum involves addressing the underlying cause, which is usually rheumatic fever. This may involve antibiotics to treat the streptococcal infection, as well as anti-inflammatory medications to reduce inflammation and manage symptoms.

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