research Postsclerotherapy Hyperpigmentation: A Histologic Evaluation 119 citations , May 1987 in “The Journal of Dermatologic Surgery and Oncology” Most patients' skin darkening after sclerotherapy fades on its own within 6-24 months.
research Role of Dermal Melanocytes in Cutaneous Pigmentation of Stasis Dermatitis 2 citations , January 2002 Melanin and melanocytes contribute to the brown pigmentation in stasis dermatitis.