رتیکولوهیستیوسیتوز خود محدود شونده مادرزادی (گزارش 1 مورد با ضایعه منفرد)

The pathophysiology and pathogenesis of congenital self-healing reticulohistiocytosis (CSHRH) as well as the other types of langerhans’ cell histiocytosis is not well understood. Some authors postulate a possible imbalance of the immune mechanisms that results in production of cytokines. We introduce a 41-day-old male infant who had a plaque of 0.5×1cm with mild discharge at proximal part of right forearm at birth and spontaneous regression within the first 3 months of life.