Calcipotriol treatment of confluent and reticulated papillomatosis (Gougerot-Carteaud syndrome)

Gougerot-Carteaud syndrome or confluent and reticulated papillomatosis (CRP), was first described by Gougerot and Carteaud as dermatosis.(1,2) It is generally considered a rare condition. The eruption consists confluent, flat, brown papules localized primarily to the intermammary and interscapular regions with subsequent spread to the breast and abdomen; at the periphery, the papules spread out forming a pigmented reticulated pattern. At present, the aetiology of CRP remains unknown. The two prominent theories are an abnormal host response to fungi(3) and a keratinization defect.(4,5) Other hypothesis include photosensitivity,(6) genetic factor,(7) amylodosis cutis(8) and endocrinopathy.(9)