A case of confluent and reticulated papillomatosis treated with a combination of topical calcipotriol and tretinoin

Abstract

Confluent and reticulated papillomatosis (CRP) is a dermatosis first described by Gougerot and Carteaud. It is proposed to occur as a result of abnormal host response to Pityrosporum ovale or to be a keratinization disorder. Clinically, brownish hyperkeratotic, reticular papules and plaques which tend to coalesce are seen on seborrheic areas. A 16-year-old female patient admitted to our outpatient clinic because of itchy brown spots on her neck, anterior trunk and the back region for three years. She was diagnosed as CRP due to the clinical and histopathological findings and was treated successfully with a combination of topical calcipotriol and tretinoin. We aimed to review the clinical findings and treatment options of CRP, a rare dermatosis, in the light of the literature on the occasion of this case.