dermatologic disorders
Description of Skin Lesions
Lesion Configuration (Secondary Morphology)
Configuration is the shape of single lesions and the arrangement of clusters of lesions. take on the shape of a straight line and are suggestive of some forms of Contact Dermatitis , linear epidermal nevi, and lichen striatus. Excoriations resulting from scratching are typically linear. are rings with central clearing. Examples include Granuloma Annulare , some drug eruptions, some are circular or coin-shaped; an example is Nummular Dermatitis (nummular eczema). appear as rings with central duskiness and are classic for Erythema Multiforme . have linear, branched, and curving elements. Examples include some fungal and parasitic infections (eg, Cutaneous Larva Migrans ). Reticulated lesionshave a lacy or networked pattern. Examples include cutis marmorata and livedo reticularis. describes grouped papules or vesicles arranged like those of a Herpes Simplex Virus (HSV) Infections . describes lesions clustered in a dermatomal distribution similar to those of Herpes Zoster . 