“…[2][3][4] It is important to diagnose and treat ACA as promptly as possible because expansion of skin changes, irreversible damage of epidermal and dermal structures, and extracutaneous signs and symptoms occur in the vast majority of patients after a longer disease duration. 1,5,6 ACA has many features that overlap with those of chronic venous insufficiency, 7 the advanced stage of incompetence of the venous system of the legs that is clinically characterized by varicose veins, bluish-red discoloration, edema, chronic inflammation of the dermis and subcutis with secondary eczema, hyperpigmentation, dermatosclerosis, and leg ulcers. 8 The prevalence in the adult population is 15%, but it occurs only occasionally in childhood.…”