1. The cause of amenorrhea was a histiocytic infiltration of the pituitary stalk.

2. 18 Subject_Topical_Eng: Foundation Medical; Pathological Reacher; Anthropotomy ; Histiocytic Embryology; Pathology and Physiology; Immunology.

3. The lake seemed to wash away the troubles of the past, and the grand old mountains to look Benignly down upon them saying, "Little children, love one another." (Little Women, by Louisa May Alcott) Superficially located histiocytic lesions behave Benignly but deep, benign histiocytomas may invade locally into surrounding tissue.