Familial Lichen Planus: Report of 4 cases in a family

Although lichen planus is a fairly common disorder, its familial occurrence is uncommon and varies between 1.5 and 10.7%. In most reports, only two or three members of the family have had disease but occasionally more family members may be affected. We present a case of lichen planus, whose father, mother, and maternal aunt also had this disease.