Differential Diagnosis of Lesions.

There have been many uncertainties during the coronavirus pandemic. New studies emerge about new symptoms associated with the virus that include dermatological disorders. Lesions with an unknown cause can be a challenge to diagnose and treat. Some lesions have nonspecific symptoms associated with viral infections, immune-mediated reactions, autoimmune disease, malignancy, radiation, immunizations, and sarcoidosis. These lesions may be associated with erosions and bullae that can involve the mucosa. Nurse practitioners must be aware of the clinical manifestations of various lesions and need to determine when patients should be hospitalized or managed in the outpatient setting.