Objective: Histiocytosis is a systemic disease that usually affects the central nervous system. The aim of this study is to discuss the neuroimaging characteristics of Langerhans cell histiocytosis (LCH). the most common of these diseases; and the non-Langerhans cells histiocytosis (NLCH). which includes entities such as hemophagocytic syndrome. https://yeswellneses.shop/product-category/disposable-masks/