This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'Auspitz sign is seen in : \nSelect and explain. \nA. Pustular psoriasis, B. Plaque type psoriasis, C. Lichen planus, D. Pityriasis rubra pilaris', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. Plaque-type psoriasis Auspitz sign is a feature of plaque psoriasisPlaque psoriasis or psoriasis vulgaris in the most common form of psoriasis.Auspitz signIt is a bedside test to confirm the clinical presentation of psoriasis.There are 3 steps to this testStep A -Gently scrape the lesion with a glass slide. This accentuates the silvery scales Scrape off all the scales. Step B-As you continue to scrape the lesion, a glistening white adherent membrane appears. Step C-On removing the membrane, punctate bleeding points become visible.The other bedside test for Psoriasis is: - Grattage test * Scales in a psoriatic plaque can be accentuated by grating with a glass slide", 'role': 'assistant'}]