The area that was chosen for the photomicrographs in this case illustrates the lack of the normal number of large anagen phase follicles. There is a malformed pilosebaceous unit. There is nothing striking in the way of a proliferative lesion in this area. Scan power view. There are no large, anagen phase follicles, no fibrous tracks, and no scar.
Epidermal acanthosis is minimal.
Part of a sebaceous unit that would be of normal size in an adult is in the extreme right side of the picture. Low power view of above. This is a markedly malformed pilosebaceous unit. The sebaceous units are small rather than hyperplastic. Sebaceous hyperplasia is somewhat dependent on hormones and is prone to appear at puberty.