Woolly hair naevi with systematized linear epidermal naevus.

The article presents a report on woolly hair naevi with systematized linear epidermal naevus. Woolly hair naevus is a rare abnormality of scalp hair which is frequently found in association with a linear epidermal naevus. In this article, a case where woolly hair naevi has been discussed which is associated with a systemized linear epidermal naevus, a previously undescribed combination. Under the light microscope, no morphological difference between the woolly hair and normal hair is evident. Scanning electron micrographs of normal and abnormal hair are identical.