Screening for Cancer.Doctors are trained in the art and science of treating symptoms. Symptoms are our bodies ways of announcing disease. In short, internally we are often a day late and a dollar short.
Dermatology is beautifully different: we can see evidence of early pathology by examining the organ (skin) directly. The average dermatologist by recognizing and removing abnormal moles saves 2-3 patients' lives per month since these moles would evolve into uniformly fatal malignant melanomas ("mole cancers") with the patient dying within a few years.
Risk factors include fair skin, fair hair, blue eyes, and to a lesser degree excessive sun exposure. Evolving tumors, when removed early, are 100% curable; 100% fatal when removed late.
A yearly full cutaneous exam on all patients would essentially prevent this fatal disease (the fastest increasing cancer in the U.S) from exacting its toll.