Barrett's esophagus (BE), a known precursor of esophageal adenocarcinoma has recently been associated with human papillomavirus (HPV). p16(INK4a) expression is a recognized surrogate marker of HPV infection in the cervix.
Department of Pathology, Fletcher Allen Health Care Center/University of Vermont, EP2-151, 111 Colchester Avenue, Burlington, VT 05401, USA. anita.iyer@vtmednet.org