Purpura Localized on the Chin: A New Entity Other Than Factitial Causes?

Abstract

Purpura is a dermatological finding with many underlying causes including hematological, traumatic, infectious, psychogenic, vascular, and drug-related causes. Although the localization of the lesions varies depending of the underlying cause, they can rarely present in atypical localizations. Lesions localized on the chin are generally attributed to infectious and factitious (mechanical) causes. This paper will present two cases with acute, short-lasting, itchy purpuric skin rashes on the chin and lower lip mucosa and revealing no etiologies. Despite every effort, the underlying causes of the disease could not be identified in our cases. Therefore, we consider that this could be a different disease.