Most descriptions of the symptomatology of lichen simplex mention the back of the neck as a favorite site of the disease, and note incidentally that the lesions of the neck may extend into the hairy scalp; but they neither emphasize the scalp localization nor mention the different symptomatology in this region. The fact is that the scalp localization is one of the commonest.1 In a series of cases under my care, it was fully as frequent as the involvement of the skin of the back of the neck. Of twenty-five patients, ten, or 40 per cent, had lesions on the scalp. Four had lesions on the scalp only; in six the nape was also involved, and in two of these there were also lesions on the forearms. In four cases in the series there were nape lesions without scalp involvement.
SYMPTOMATOLOGY
In descriptions of the symptoms of lichen simplex,