[Headache affecting the pigmented zones of Ota's naevus: clinical study in four cases (author's transl)].

Four women, aged between 23 and 69 years, who had developed Ota's naevi either during the menarche (3 cases) or the first pregnancy (1 case), complained of headache in the frontal and orbital zones affected by the naevi. These headaches bore no relationship to those normally described as occurring in this region. They increased in severity, at the same time as the intensity of the pigmentation of the naevus, in each patient during the menstrual periods, and did not respond to conventional analgesics.