Page:Skin Diseases of Children.djvu/86

a small oval patch (as in the plate), and from its size and shape its origin is frequently ascribed to some maternal impression—e.g., the mother having been frightened by a mouse. Often the hairy scalp appears to extend over the temple or upon one side of the forehead, as in Fig. 28, and not infrequently it is seen

Fig. 28.

upon the cheek beneath the eye or involving both lids and vicinity, as in Fig. 29.

In rare cases a large extent of cutaneous surface is affected, and the whole trunk may appear as though covered with fur instead of normal skin (Fig. 30). The lumbar or pelvic region is also apt to be the seat of the hairy nævus, which in some cases