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: Dental
Gottron papules' seen in dermatomyositis all are true except 
Select and explain. 
A. seen on knuckles, B. Violaceous papules, C. Bullous lesions, D. Seen in 1/3 of patients
C: Bullous lesions
Answer: C: Bullous lesions 
Explanation: Gottrons papules are violaceous papules on bony prominences of hands , elbows, knees and feet. present in 1/3of patients. gottrons sign presence of symmetric violaceous or erythematous macules in same distribution as that of gottrons papules. IADVL textbook of dermatology page 1248