erythema nodosum

noun
erythema no·​do·​sum | \ -nō-ˈdō-səm How to pronounce erythema nodosum (audio) \

Medical Definition of erythema nodosum

: a skin condition characterized by small tender reddened nodules under the skin (as over the shin bones) often accompanied by fever and transitory arthritic pains and commonly considered a manifestation of hypersensitivity

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