<prompt> Mucous lesions are seen in :Sec. syphilisDermatitis herpetiformisPsoriasisPemphigus  <response>: D i.e. PemphigusMucosa involvement is seen in Behcets syndrome, reactive ahritis Reiters 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, ocularoralscarringcicatricalbenign mucosalor mucous membrane - pemphigoid or bursting perry pemphigoid involve mucosa. 