Dr. Ann M. Murray: A 5-year-old boy was admitted to this hospital because of fever and rash. The patient had been well until 3 days before the current presentation, when his mother noticed that he was ...

Pityriasis rosea (PR) is an acute inflammatory skin disorder characterized by erythematous scaling papules and macules. PR lesions are most commonly distributed over the trunk and proximal extremities ...

Erythema multiforme (EM) is an acute, immune-mediated, mucocutaneous eruption marked by symmetrically distributed targetoid lesions. 10 The typical EM lesion morphology is a targetoid round macule or ...

In my response to a related question, How Do I Differentiate Normal Aging of the Skin From Pathologic Conditions? I described some of the most common benign lesions that are encountered in geriatric ...

Symmetrical—lesions appear to be distributed in a similar arrangement on differing sides of the body (Figure 3, see slideshow) Once the configuration and distribution has been determined, the next ...