<prompt> Mouth lesions are seen inPsoriasisLichen planusIchthyosis vulgarisBasal cell carcinoma  <response>: A white lacework pattern on the buccal mucosa in most frequently observed in lichen planus in 30 of the patients ii Psoriasis - common site - elbow, knee, scalp, lower back fingernails iii Basal cell carcinoma - common site is face 