Lois Richard

All articles by Lois Richard

Erythema nodosum

Erythema nodosum (EN) manifests as a classic panniculitis, or painful disorder of subcutaneous fat tissue. Its presence can signify an underlying infection, inflammatory condition, or malignancy in a patient. In addition, certain medications and even pregnancy can cause erythema nodosum. The pathogenesis of erythema nodosum remains unclear, but a nonspecific cutaneous reaction caused by a…

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