<prompt> Gottron;s papules are -Erythematous papules on cheeksErythema seen over elbows and kneesPeriorbital lesionsViolaceous papules over knuckles  <response>: Gottrons papules- violaceous papules on bony prominences of hands metacarpophalangeal joints, inter phalangeal joints. Evolve to depressed strophic porcelain white centres with telengiectasia. gottrons sign is presence of symmetric violaceous erythematous macules or plaques over same distribution as gottrons papules. References IADVL textbook of dermatology page1248 