Leg ulcers: differential diagnosis in the elderly.

Leg ulcers are a common problem encountered in the elderly. Because their origins are often multifactorial, it is essential for the primary care physician to have a sound knowledge of differential diagnosis to institute proper treatment. This review discusses salient historical points as well as bedside physical examination techniques useful in patients presenting with leg ulcer. Also discussed are pathophysiology of most common types of ulcer, including venous disease, arterial disease, diabetes, and physical agents. Less common causes of leg ulcer are also reviewed.