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  • Title: [A Case of Recurrent Gastric GIST Who Survived for Long after Laparoscopic Resection and Imatinib Therapy].
    Author: Yabe N, Takenoya T, Oto I, Harada Y, Kondo A, Ogiso M, Maeda H, Asada Y, Sako H, Yoshikawa T, Osumi K, Kamiya N, Sotome K, Ishii Y, Watanabe M.
    Journal: Gan To Kagaku Ryoho; 2023 Dec; 50(13):1718-1720. PubMed ID: 38303184.
    Abstract:
    A man patient in his 70s underwent left nephrectomy and laparoscopic partial gastrectomy for the treatment of a left renal cell carcinoma and gastrointestinal stromal tumor(GIST)arising from the stomach. Histopathologically, both the renal cell carcinoma and GIST were kit-positive, CD34-positive, and S-100 protein-negative, and the Ki-67 index was about 40% as determined by the hot spot method, so that it was diagnosed as an intermediate-group GIST. After surgery, the patient was followed without adjuvant therapy, as he did not wish to receive postoperative chemotherapy. A computed tomography(CT)conducted 3 years after the surgery revealed tumorous shadows in the abdominal wall, inferior periesophageal region, and dorsal aspect of the pancreas. Positron emission tomography(PET)-CT showed fluorodeoxyglucose(FDG) accumulation in these lesions. Therefore, based on a suspicion of recurrent renal cell carcinoma or GIST, we carried out abdominal wall tumor resection for both exploratory and diagnostic purposes, which yielded histopathological diagnosis of GIST, with features similar to those observed at the time of the initial operation. Because the number of tumors remained unchanged during the subsequent follow-up period, the tumorous lesions in the periesophageal region and on the dorsal aspect of the pancreas were resected laparoscopically. Each of the resected tumors showed histological features consistent with GIST. The patient was started on oral imatinib therapy after this operation. To date(5 years after the surgery for the recurrent tumors and 8 years after the initial operation), the patient has remained free of recurrence. The pattern of tumor recurrence noted in the present case(ie, metastasis/dissemination to the skeletal muscles)is relatively rare, and few reports have been published concerning long-term survivors through multidisciplinary treatment (surgical treatment and others). We report this case with a review of the literature.
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