A rare case of primary esophageal Paget’s disease with underlying invasive adenocarcinoma

A 53-year-old man presented to Ruijin Hospital, having been followed up for 9 months with an esophageal lesion that had initially been detected during a routine esophagogastroduodenoscopy (EGD) and had been diagnosed histopathologically as a high grade intraepithelial neoplasia (HGIN).