Simulated Dermatology Patient

Case 1 A 27-year-old female visited the clinic for erythematous macules on both lower legs of more than 10 years. These skin lesions improved in summer, and are exacerbated by cold.
case2 A 42-year-old male suffered painful oral lesions for 3 months. He had extensive lesions on the back, mostly erosions and crusts, and no intact bullae.
case3 A 62-year-old male had a large tense bullae and erythematous urtical-type lesions on medial aspects of both lower legs of one month. He didn't have any oral lesions in the beginning.