Respiratory Epithelial Adenomatoid Hamartoma
Comments:
The glands invaginate into the submucosa and can be seen in direct continuity with the surface. They are separated by ample stroma. There is no prominent mitotic activity or necrosis. A significant thickening of the basement membrane is a classic finding. Image courtesy of: Nazim Benzerdjeb, MD, PhD, Pathology Department, Lyon University Hospital, Lyon, FRANCE; used with permission.