Abstract
Only a few cases of esophageal granulocyte-colony-stimulating-factor (G-CSF)–producing esophageal carcinosarcoma are reported, and patients with G-CSF–producing tumors are typically considered to have poor prognosis. An 89-year-old man was examined for low-grade fever and dysphagia. Chest computed tomography revealed a huge 80-mm tumor on the thoracic esophagus without direct invasion to surrounding organs. Esophagogastroduodenoscopy (EGD) showed a huge mass occupying the esophageal lumen with a superficial flat lesion. Histopathological examination revealed that the tumor was composed of bizarre giant cells and pleomorphic spindle cells with hyperchromatic nuclei. Laboratory data showed aberrant elevation of leukocyte and neutrophil counts and G-CSF levels. The tumor was finally diagnosed as a G-CSF-producing esophageal carcinosarcoma, stage II (T2N0M0, Union for International Cancer Control-TNM Classification of Malignant Tumors, 8th edition). Considering his general condition, we performed palliative radiotherapy (45 Gy/15 fr) alone after consultation with surgeons and radiation oncologists. Follow-up EGD demonstrated the disappearance of the tumor, and the histological assessment of biopsy specimens confirmed no evidence of malignancy. The leukocyte count and G-CSF levels decreased within normal range. This is a very rare case of G-CSF-producing esophageal carcinosarcoma in which a pathologically complete response was achieved using palliative radiotherapy alone.
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Keiichi Kimura, Yoshito Hayashi, Keisuke Otani, Yoshiki Tsujii, Hideki Iijima, Fumiaki Isohashi, Kazuhiko Ogawa, and Tetsuo Takehara declare that they have no conflict of interest.
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Kimura, K., Hayashi, Y., Otani, K. et al. Esophageal carcinosarcoma that disappeared pathologically by palliative radiotherapy alone. Clin J Gastroenterol 12, 247–253 (2019). https://doi.org/10.1007/s12328-019-00933-7
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DOI: https://doi.org/10.1007/s12328-019-00933-7