[A case of gastrointestinal stromal tumor of the stomach with lymph node metastasis followed up for 7 years without evidence of recurrence after surgery].

A gastric tumor was pointed out in 43-year-old woman as a result of a medical check-up. We performed partial gastrectomy based on a preoperative diagnosis of a gastrointestinal stromal tumor (GIST). However, as intraoperative frozen section histological examination showed lymph node metastasis, we performed a total gastrectomy simlilar to cases of gastric cancer with lymph node dissection. Postoperative histological examination showed that the tumor was positive for c-kit immunohistochemically, and consisted of spindle cells. We made a diagnosis of GIST of the stomach with lymph node metastasis. Lymph node metastasis in a case of GIST is rare, and has a poor prognosis. We report a case of a rare gastrointestinal stromal tumor with lymph node metastasis, followed up for 7 years with no evidence of recurrence after radical surgery with lymph node dissection.