Antiretroviral-responsive confluent and reticulated papillomatosis: a case report of an unusual association.

This is the case of a 29-year-old male newly diagnosed with advanced HIV (CD4 < 35cells/mm3), presenting to us with hyperpigmented and scaly non-pruritic macules over his chest and upper abdomen of several weeks duration. Woodlamp examination was negative, but a skin biopsy suggested confluent and reticulated papillomatosis (CRP). Given his lack of any of the condition's identifiable triggers and the unusually rapid resolution of his lesions shortly after antiretroviral therapy initiation, an immunodeficiency-related etiology for his CRP was entertained. Autoimmune disorders and atopic conditions have been well reported previously as possible triggers of CRP. However, in this report, we raise immunodeficiency as a possible trigger of CRP as well, such that immune dysregulation overall (autoimmunity or immunodeficiency) can contribute to CRP ontogenesis. To our best knowledge, this is the first report to date suggesting a possible association between CRP, a rare dermatological condition, and acquired immunodeficiency syndrome.