Open Access
Table I
Cutaneous manifestations of dermatomyositis.
| Signs | Description |
|---|---|
|
CHARACTERISTIC
Heliotrope rash Shawl sign V-sign Psoriasiform scaly plaques of the scalp Periungual telangiectasia |
Red to violet poikilodermatous periorbital eruption with oedema. Figure 1A Rash on the back and shoulders. Figure 1B Rash on the anterior chest |
|
PATHOGNOMONIC
Gottron's papule Gottron's Sign |
A raised violaceous rash at the knuckles of the hands, including the metatarsophalangeal and interphalangeal joints. Figure 1C Erythematous or violaceous macules and patches overlying the extensor tendons of extremities, including over the elbows and knees. |
|
COMPATIBLE
Poikiloderma Holster sign Periorbital edema without skin colour change Facial swelling |
Combined hyper and hypopigmentation, telangiectasia, and superficial atrophy in the photoexposed skin on the upper portions of the chest and extensor surfaces of the arms Lateral aspects of the hips and upper thighs with macular, violaceous erythema |
|
LESS COMMON
Dystrophic calcinosis cutis Cutaneous small vessel vasculitis |
Specific for JDM, seen in 70% cases, superficial or flesh coloured to white papules and nodules found on bony surfaces and potential inflammatory sites Includes petechial macules, purpura, urticaria, livedo reticularis, and skin or oral ulceration |
|
RARE
Mechanic's hands Follicular hyperkeratosis (Wong type DM), Erythema flagellatum, Panniculitis, Mucinosis, Erythroderma and oral mucosal changes |
Hyperkeratotic, scaly plaques on the radial and ulnar aspects of the thumb, index, and third fingers |
|
RECENTLY DESCRIBED
Inverse Gottron's papules Digital pulp ulcerations Sleeve sign |
White, atrophic or triangular hyperkeratotic palmar creases of the knuckles Due to underlying vasculitis/vasculopathy Lateral aspects of the upper arms with violaceous, macular erythema |
|
NON SPECIFIC
Photosensitivity Raynaud's phenomenon Pruritis |
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