title: Solitary choroidal metastasis from gastric adenocarcinoma: a case report.
abstract: BACKGROUND
  Metastatic choroidal carcinomas that originated from the gastrointestinal tract are extremely rare. We report a case of suspected solitary choroidal metastasis from gastric adenocarcinoma.
  
  
  METHODS
  The patient was a 60-year-old man who had undergone laparoscopic distal gastrectomy with D1+ lymphadenecetomy for gastric cancer. The clinical stage was T1bN0M0 (TNM classification), but the pathological stage was T4aN0M0 beyond expectation. Adjuvant chemotherapy with oral Tegafur, Gimeracil, Oteracil potassium (TS-1®) was initiated. But he suddenly complained of decreased visual acuity in his right eye about 8 months later. This was suspected to be caused by choroidal metastasis of gastric adenocarcinoma. Chemotherapy with paclitaxel (PTX) and intensity-modulated radiotherapy (IMRT) achieved complete remission and spared the patient from going blind.
  
  
  CONCLUSIONS
  This case demonstrates that we should be aware of the possibility of choroidal metastases, when visual symptoms arise during treatment of gastric cancer.
authors.affiliation: Department of Surgery, Fukui-ken Saiseikai Hospital, 7-1 Wadanaka-Funabashi, Fukui, 918-8503, Japan. masanari.shimada@gmail.com.
authors.forename: Masanari
authors.identifier: http://orcid.org/0000-0001-6942-589X
authors.initials: M
authors.lastname: Shimada
authors.affiliation: Department of Surgery, Fukui-ken Saiseikai Hospital, 7-1 Wadanaka-Funabashi, Fukui, 918-8503, Japan.
authors.forename: Susumu
authors.initials: S
authors.lastname: Amaya
authors.affiliation: Department of Surgery, Fukui-ken Saiseikai Hospital, 7-1 Wadanaka-Funabashi, Fukui, 918-8503, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Sugita
authors.affiliation: Department of Surgery, Fukui-ken Saiseikai Hospital, 7-1 Wadanaka-Funabashi, Fukui, 918-8503, Japan.
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Furutani
authors.affiliation: Department of Surgery, Fukui-ken Saiseikai Hospital, 7-1 Wadanaka-Funabashi, Fukui, 918-8503, Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Munemoto
authors.affiliation: Department of Surgery, Fukui-ken Saiseikai Hospital, 7-1 Wadanaka-Funabashi, Fukui, 918-8503, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Mitsui
authors.affiliation: Department of Ophthalmology, Fukui-ken Saiseikai Hospital, Fukui, 918-8503, Japan.
authors.forename: Toshiro
authors.initials: T
authors.lastname: Tanahashi
authors.affiliation: Department of Radiation therapy, Fukui-ken Saiseikai Hospital, Fukui, 918-8503, Japan.
authors.forename: Yuzo
authors.initials: Y
authors.lastname: Kikuchi
keywords: Adenocarcinoma; Adjuvant chemotherapy; Choroidal metastasis; Gastric cancer; Solitary