[Choroidal metastasis from gastric cancer 8 years after surgery]

A man in his 50s underwent total gastrectomy with D2 lymphadenectomy for gastric cancer 8 years ago. The pathological stage was pT3N3bM0, pStage IIIC. He took tegafur, gimeracil, and oteracil potassium (S-1) as adjuvant chemotherapy for the next 3 years at his own request. No recurrence was observed for 8 years after surgery, but then a recurrent lesion near the anastomosis and multiple metastases were detected on abdominal computed tomography. He started treatment with S-1 plus oxaliplatin. One month later, he experienced right-sided visual disturbance. Ophthalmological tests revealed a tumor on his choroid. Three months later, the recurrent tumor and metastatic lesions shrank, and his visual symptoms improved. Therefore, we diagnosed choroidal metastasis from gastric cancer. Choroidal metastasis from the gastrointestinal tract is extremely rare. We discuss this case along with the relevant literature.