Comparison of the two histological subtypes of ampullary adenocarcinoma: a retrospective study

Zi Y. Xu ¹, Jiao Guan ¹, Zheng Y. Zhang ¹, Da W. Liu ², Xiao D. Li ³, Zunq Q. Zhou ¹

¹ Department of Surgery, Shanghai Jiao Tong University Affiliated Sixth People???s Hospital, Shanghai, China; ² Department of Surgery, Heilongjiang Provincial Hospital Affiliated to Harbin Institute of Technology, Harbin, ChinaDepartment of Surgery, Heilongjiang Provincial Hospital Affiliated to Harbin Institute of Technology, Harbin, China; ³ Department of Surgery, Heilongjiang Provincial Hospital Affiliated to Harbin Institute of Technology, Harbin, China