About Panniculitis (Erythema Nodosum)

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Learn about the disease, illness and/or condition Panniculitis (Erythema Nodosum) including: symptoms, causes, treatments, contraindications and conditions at ClusterMed.info.

Panniculitis (Erythema Nodosum)

Panniculitis (Erythema Nodosum)
Panniculitis (Erythema Nodosum)

Panniculitis (Erythema Nodosum) Information

Can erythema nodosum be confused with other conditions?

The nodules of erythema nodosum are sometimes confused with insect bites. Sometimes the inflammation of erythema nodosum is more widespread and can mimic skin infection (cellulitis).

How is erythema nodosum diagnosed?

Usually, erythema nodosum is a straightforward, simple diagnosis for a doctor to make by examining a patient and noting the typical firm area of raised tenderness that is red along with areas which have had lesions resolved, which might show a bruised-like appearance. It does not typically require other investigative tests.Sometimes a biopsy is done for confirmation. For example, if a patient presents with an isolated, nodule and a doctor is unable to make a diagnosis based on its appearance. The biopsy of the deeper layers of tissue of skin can prove that it is erythema nodosum.

How is erythema nodosum treated?

Erythema nodosum is initially managed by identifying and treating any underlying condition present. Simultaneously, treatment is directed toward the inflamed skin from the erythema nodosum. Treatments for erythema nodosum include anti-inflammatory drugs, and corticosteroids by mouth or local injection. Colchicine is sometimes used to reduce inflammation. Treatment must be customized for the particular patient and conditions present, such as the existence of any associated diseases. It is important to note that erythema nodosum, while annoying and often painful, does not threaten internal organs and the long-term outlook is generally very good.

What are the signs and symptoms of erythema nodosum?

Characteristic features of erythema nodosum include barely raised, tender, reddish nodules, most commonly below the knees in the front of the legs. They are typically painful and can slowly come and go.There are several scenarios for the outcome of erythema nodosum. Typically, these nodular areas are tender and inflamed off and on for a period of weeks. They usually then resolve spontaneously, each one of the little areas of inflammation shrinking down and then becoming flat rather than raised and inflamed. They leave a bruised appearance. Then, they resolve completely on their own. Other lesions can sometimes pop up elsewhere. This may occur for periods of weeks to months, and then they eventually disappear. However, chronic erythema nodosum that may last for years is another pattern. Chronic erythema nodosum, with intermittent recurrences, can occur with or without an underlying disease present.

What causes erythema nodosum?

Erythema nodosum may occur as an isolated condition or in association with other conditions. Conditions that are associated with erythema nodosum include:

  • medications (sulfa-related drugs, birth control pills, and estrogens),
  • strep throat,
  • Cat scratch disease,
  • fungal diseases,
  • infectious mononucleosis,
  • sarcoidosis,
  • Behcet's disease,
  • inflammatory bowel diseases (Crohn's disease and ulcerative colitis), and
  • normal pregnancy.

What is erythema nodosum?

  • Erythema nodosum is a type of skin inflammation that is located in a certain portion of the fatty layer of skin.
  • Erythema nodosum (also called EN) results in reddish, painful, tender lumps most commonly located in the front of the legs.
  • The tender lumps, or nodules, of erythema nodosum range in size from one to five centimeters. The nodular swelling is caused by a inflammation in the fatty layer of skin.
  • Erythema nodosum can be self-limited and resolve on its own in three to six weeks. Upon resolution, it may leave only a temporary bruised appearance or leave a chronic indentation in the skin where the fatty layer has been injured.

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