Examination of the bilateral upper extremities and trunk revealed symmetric, violaceous, polygonal papules coalescing into plaques (Figure 1). Marked isomorphism (Koebnerization) was noted.

In the rare and atypical atrophic variant, the normal papules are replaced by flat violaceous macules that are found in the axillae and glans penis. Etiology: Lichen planus is a common ...

A heliotrope rash, a violaceous edematous periorbital erythema that may be slightly scaly, is considered pathognomonic for dermatomyositis. ADPDM (previously Gottron's papules) appear as red to ...

A 77-year-old man presented for investigation of violaceous papules that had suddenly appeared on his chest, abdomen, and back 6 months earlier. The patient displayed B symptoms, was underweight ...