What is Histiocytosis?
'''Histiocytosis''' is the name for a medical condition, when a human (or other animal) has too many [[Hystiocyte|hystiocytes]]. Hystiocites are specialized [[Macrophage|macrophages]]. Hystiocitosis is also used as a name for a number of [[Disease|diseases]], which have this symptom. The diseases are relatively rare, they affect about one to two newborns per million. The WHO has classified the diseases in three groups. There are different forms of [[chemotherapy]], to treat theose affected. {{Biology-stub}} [[Category:Blood cells]] [[Category:Blood disorders]]