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: Skin
Mucous lesions are seen in : 
Select and explain. 
A. Sec. syphilis, B. Dermatitis herpetiformis, C. Psoriasis, D. Pemphigus
D: Pemphigus
Answer: D: Pemphigus 
Explanation: D i.e. PemphigusMucosa involvement is seen in Behcet's syndrome, reactive ahritis (Reiter's syndrome), Peutz Jegher syndromeQ, erythema multiforme major, Steven Johnson syndrome, TEN, lichen planusQ, lupus erythematousus, leprosy, measles (Koplik spots) Q, Fordyce spot & disease, syphilis (congenital and secondary), inflammatory bowel disease, acute HIV infection and pemphigus vulgarisQ.Pemphigus folicaeus and bullous pemphigoid do not involve mucous membraneQ. However, * ocular/oral/scarring/cicatrical/benign mucosal/or mucous membrane - pemphigoid or bursting perry pemphigoid involve mucosa.