This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autoimmune Skin Disorders, Subject name: Skin
Which of the following is not a feature of dermatomyositis? 
Select and explain. 
A. 'V' sign, B. Holster sign, C. Pokiloderma, D. Groove sign
D: Groove sign
Answer: D: Groove sign 
Explanation: Ans. is 'd' i.e., Groove sign * Groove sign (a depression along the course of a vein or between muscle groups) is seen in deep morphea.Cutaneous signs od dermatomyositisi) Gottron's papules: lilac or violaceous papules on knuckles and dorsa of handsii) Gottron's sign: violaceous erythema with edema over shoulders, arms and forearmsiii) Heliotrope sign: violaceous erythema with edema over eyelids, periorbital regioniv) Poikiloderma: atrophy of skin, hypopigmentation, dialalted blood vessels over trunkv) Mechanic hand: symmetrical hyperkeratosis on ulnar aspect of thumb and radial aspect of fingersvi) Shawl sign: violaceous erythema extending from dorsolateral aspect of hands, forearms and arms to shoulders and neck.vii) 'V' sign: violaceous erythema in a V shaped distribution over anterior neck and chest.viii) Holster sign: b/1 symmetrical, patchy macular violaceous erythema displayibg a reticuloid or levidoid array over the lateral aspect of upper thigh and hips.ix) Calcinosis cutis: calcium deposits in skin (in juvenile variant)x) Miscellaneous signs: Photosensitivity, vasculitis, panniculitis, Nail-fold telangiectasia