<prompt> Grotons sign is seen in?DermatomyositisSLESclerodermaMCTD  <response>: Dermatomyositis REF: Harrisons 17th e chapter 382 Dermatomyositis DM is a distinctive entity identified by a characteristic rash accompanying, or more often preceding, muscle weakness. The rash may consist of a blue-purple discoloration on the upper eyelids with edema heliotrope rash a flat red rash on the face and upper trunk Erythema of the knuckles with a raised violaceous scaly eruption Gottrons sign. The erythematous rash can also occur on other body surfaces, including the knees, elbows, malleoli, neck and anterior chest often in a V sign, or back and shoulders shawl sign, and may worsen after sun exposure. 