Page:Skin Diseases of Children.djvu/117

characteristic and often serves as an excellent basis of diagnosis. The lesions are at first discrete, but show a marked tendency to coalesce and form irregular or reticulate patches of varying

Fig. 51.—Lichen planus.

size. The most common site of the eruption is upon the anterior aspect of the forearm and next upon the lower extremities. It is often seen around the waist and sometimes upon the

Fig. 52.—Lichen planus.

genitals. In exceptional cases the greater portion of the trunk may be affected, and such cases are very apt to be confounded with lichen ruber. Upon the legs the patches are frequently