Abstract
Purpose: Although preoperative chemotherapy for advanced gastric cancer is now commonly applied with favorable results, convincing evidence for life prolongation and predictive markers for a good prognosis are both lacking. We report here 5 cases that have shown a distinct positive effect of preoperative chemotherapy together with the results of a precise histological examination of materials indicating features predicting a favorable outcome. Patients and methods: A total of 18 patients with a far-advanced gastric carcinoma subjected to gastrectomy after FLEP (5-fluorouracil, leucovorin, etoposide, cisplatin) in the Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, could be divided into two distinct groups: 5 surviving over 5 years (group A) and 13 who died within 13 months (group B). Histological features (subtypes) of the carcinomas and chemotherapeutic effects were studied with reference to biopsy materials and resected stomachs and lymph nodes. Results: In group A, 3 of 5 patients had solid-type poorly differentiated adenocarcinomas. In contrast, in group B, 9 had tubular adenocarcinomas (well or moderately differentiated) and 3 non-solid or diffuse-type poorly differentiated adenocarcinomas and there was only one solid-type tumor. In group A, remarkable therapeutic effects were apparent histologically in 4 of the 5 patients with almost complete disappearance of cancer cells from metastases in lymph nodes, whereas no such changes were evident in group B. Conclusion: FLEP is distinctly beneficial for certain types of advanced gastric carcinoma, especially solid-type poorly differentiated adenocarcinomas, and favorable results can be predicted, to a certain extent, on the basis of findings for the material resected after chemotherapy.
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Received: 12 May 1999 / Accepted: 29 June 1999
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Ninomiya, Y., Yanagisawa, A., Kato, Y. et al. Histological indications of a favorable prognosis with far-advanced gastric carcinomas after preoperative chemotherapy. J Cancer Res Clin Oncol 125, 699–706 (1999). https://doi.org/10.1007/s004320050337
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DOI: https://doi.org/10.1007/s004320050337