Squamous Intraepithelial Lesions of the Uterine Cervix The Long and Winding Road of Our Understanding of Their Morphology, Biology, and the Terminology That Describes Them—From First to LAST

Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Fruit Street, Boston, MA Lower Anogenital Squamous Terminology (LAST) Project (College of American Pathologists/American Society of Colposcopy and Cervical Pathology, 2012). D.C.W. was co-chair of the LAST project and co-editor of the 3rd edition of The Bethesda System for Reporting Cervical Cytology. The authors declare no conflict of interest. Address correspondence to Robert H. Young, MD, Department of Pathology, Massachusetts General Hospital, 55 Fruit Street, Warren 2, Boston, MA 02114. E-mail: [email protected].