Civatte's poikiloderma

Civatte's poikiloderma is a variation of telangiectasia, commonly occurring on the neck and upper chest, mainly due to cumulative exposure to ultraviolet radiation and combined photosensitivity to various chemical agents (especially aromatic compounds). Histological changes in Civatte's poikiloderma include telangiectasia, irregular pigmentation deposition, and skin atrophy. Histopathological findings are consistent with clinical manifestations. The best therapeutic effects are achieved through simultaneous treatment of telangiectasia and skin tightening changes.

Treatment mainly involves pulsed dye laser and intense pulsed light (IPL). The main issue with pulsed dye laser is the occurrence of extensive purpura and the need for multiple treatments. IPL has shown very promising treatment outcomes, as the intense pulsed light system can act on the vasculature, epidermis, and dermal melanin. Typically, multiple wavelengths are used, with the initial use of a 515nm filter. Approximately 75% of adverse reactions can be improved after 1-2 treatments, mainly characterized by transient erythema and minimal purpura.

Source: Civatte's poikiloderma