Define erythematous. erythematous synonyms, erythematous pronunciation, erythematous translation, English dictionary definition of erythematous. n. Redness of the skin caused by dilatation and congestion of the capillaries, often a sign of inflammation o
The lesions may be small vesicles that rupture easily, leaving secondary erythematous erosions and crusts distributed on seborrheic areas of theface,scalp, and upper trunk. Some lesions may be keratotic plaques and show a yellow-brown scalysurface(Fig. 34-2). These localized lesions of FS may...