This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
Cayenne-pepper appearance on diascopy is seen in 
Select and explain. 
A. Psoriasis, B. Discoid lupus erythematosus, C. Pemphigus, D. Systemic sclerosis
B: Discoid lupus erythematosus
Answer: B: Discoid lupus erythematosus 
Explanation: Discoid lupus erythematosus a. Cyenne-pepper appearance of lesions on diascopy is seen in discoid lupus erythematosus. b. In discoid lupus erythematosus skin lesions usually, develop on the sun-exposed skin of the face and neck.