Pressure ulcers are characterized into four stages dependent on the severity and depth of the lesion (Figure 1). Stage I pressure ulcers involve the superficial skin layer and are characterized by ...

Operation for Bleeding Duodenal Ulcer. Occasionally, the surgeon cannot find an obvious lesion. He must then open the stomach and look inside. It may be helpful to utilize an ordinary ...

A lesion that's red, typically flat, and painful early on is usually a canker sore (aphthous ulcer). The inflammation, though irritating, likely will heal on its own. Canker sores can occur more ...