US NATIONAL LIBRARY OF MEDICINE / SCIENCE PHOTO LIBRARY US NATIONAL LIBRARY OF MEDICINE / SCIENCE PHOTO LIBRARY
Lichen planus. Historical medical illustration of two cases of lichen planus affecting the leg. This condition tends to affect middle-aged adults but has no known cause. In some cases it may be of nervous or emotional origin (such as severe stress) but in others it may be an allergic reaction. From Atlas of Venereal and Skin Diseases by Prince Albert Morrow, published in 1889.
Model release not required. Property release not required.