[O073] 食道癌診断2

[O073-2] The presence of second primary esophageal tumor is a negative prognostic factor for head and neck cancer patients.

^○Yasuhiko Hamada¹, Toshiro Mizuno², Kyosuke Tanaka¹, Tomomi Yamada³, Takashi Kitade¹, Masaki Katsurahara¹, Noriyuki Horiki¹, Takashi Sakuno⁴, Tetsuro Harada⁴, Shunsuke Tano⁴, Reiko Yamada⁴, Hiroyuki Inoue⁴, Yoshiyuki Takei⁴ (1.Dept. of Endoscopic Medicine, Mie University Hospital, Mie. Japan, 2.Dept. of Oncology, Mie University Hospital, Mie. Japan, 3.Dept. of Translational Medical Science, Mie University Hospital, Mie. Japan, 4.Dept. of Gastroenterology, Mie University Hospital, Mie. Japan)