A Unique Case of Localized Palmar Erythema Annulare Centrifugum.

Figurate erythemas (FE) are a group of diseases defined by the presence of annular or arciform erythematous skin lesions that can occur anywhere on the body. Four different types of figurate erythemas have been described: erythema annulare centrifugum (EAC), erythema gyratum repens (EGR), erythema migrans, and erythema marginatum. While each of these presents with similar morphologies, the clinical and histopathological features are often unique and can aid in the diagnosis. Although the majority of the figurate erythemas are idiopathic, some may be associated with infections, stress, or other diseases. We present a novel case of recurrent figurate erythema in a 27-year-old male that appeared to be exacerbated by hydrochlorothiazide (HCTZ) and social stressors.