Tender, deep lesions are typically found on the legs in patients with erythema nodosum. This image displays multiple red lesions on a leg, typical of erythema nodosum. This image displays the red, elevated areas of the skin on the lower legs, typical of erythema nodosum. This image displays a deep red inflammation typical of erythema nodosum. This image displays red, warm, tender lesions typical of erythema nodosum. This image displays multiple areas of erythema nodosum.
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Erythema Nodosum  Teen information

Picture of Erythema Nodosum: Tender, deep lesions are typically found on the legs in patients with erythema nodosum. Divider line
Tender, deep lesions are typically found on the legs in patients with erythema nodosum.
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Signs and Symptoms
The most common locations for erythema nodosum include:
  • Shins
  • Knees, ankles, or thighs
  • Forearms
  • Face and neck
Erythema nodosum appears as one or more reddish, warm, and painful lumps (nodules), ranging in size from 1–10 cm.

The onset of erythema nodosum may be associated with fever, generalized achiness, leg swelling, or joint pain.

Individual nodules of erythema nodosum usually last from 1–2 weeks, but new lesions may continue to appear for up to 6 weeks. When an individual lesion of erythema nodosum has resolved, it may leave behind a temporary bruise, which subsequently fades to normal-appearing skin.
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Last Modified: 22 Dec 2008
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