| 释义 |
DictionarySeepatchherald patch
her·ald patchthe initial rapidly enlarging oval-shaped red papulosquamous lesion, usually on the trunk, heralding the widespread eruption of pityriasis rosea, and preceding the latter by 7-14 days.herald patch Dermatology A lesion early pityriasis rosea consisting of a solitary oval, 1-10 cm annular macule with raised border and fine, adherent scales. See Pityriasis rosea. herald patchA solitary oval patch of scaly skin that appears several days before the generalized rash of pityriasis rosea.See also: patch |