gottron's papules - HEALTHIES
Gottron sign consists of red-purple hypertrophic papules, atrophic erythema, or red-purple macules on the extensor surface of the distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints ... Take-home points: Typically, rashes in dermatomyositis occur in sun-exposed areas and can include Gottron papules and heliotrope rashes. However, rashes may also occur elsewhere.
Understanding the Context
Classic findings of skin involvement with DM were present on examination; these included a heliotrope rash (see previous image), Gottron papules (see above image), and the Gottron sign. The classic dermatologic manifestations of dermatomyositis include heliotrope rash; Gottron's papules, which are red scaly papules over the interphalangeal joints; cuticle and nail bed hyperemia ...