New York, McGraw-Hill, 1993. During the tutorial, you may click on an image to enlarge it. You may then click on the large image to get back to the smaller original image on this page. Macules may have any size or shape. Papules are smaller than 1 cm in diameter, and the major portion of a papule pfojects above the plane of the surrounding skin.
Nodules are deeper and more substantive than papules.
Vesicles are less than or equal to 0.5 cm. Healing occurs with scarring. It occurs wherever ulceration has taken place and may be hypertrophic or atrophic. Crust is characteristic of injury and pyogenic infections.