Erythema nodosum (also called EN) is a type of skin inflammation that is located in a certain portion of the fatty layer of skin. Erythema results in reddish, painful tender lumps most commonly located in the front of the legs below the knees.
Erythema nodosum (also called EN) is a type of skin inflammation that is located in a certain portion of the fatty layer of skin. Erythema results in reddish, painful tender lumps most commonly located in the front of the legs below the knees.