Soft Wart (Verruca Mollis) And Pigmented Mole (Noerus Pigmentosus) are closely allied conditions. They are very often congenital, or they occur very early in life, and usually remain stationary through out life. They are smaller or larger elevations of the skin, either colourless or pigmented, and frequently beset with hairs. Many of them present the structure shown in Fig. 481, which places them in the category of true tumours. They are covered by epidermis which shows little difference from the normal. But instead of the normal tissue of the cutis beneath the epidermis there are masses of cells separated by connective tissue. The cells in these nests are usually large and resemble large sarcomatous cells. The presumption is that these structures are really survivals of the fcetal condition, and their importance in relation to tumours has already been referred to. In their structure it will be observed that these warts are much more like tumours than the ordinary warts, and that their tissue conforms to that of the sarcomas. Sometimes a soft wart is composed of a mass of adipose tissue covered by epidermis.

Fig. 481. - Section of a soft wart. It is covered with epidermis and consists of a very cellular tissue. The cells are spindle-shaped. To the left a hair-follicle and sebaceous gland.