@article{oai:soar-ir.repo.nii.ac.jp:00003867, author = {Joshita, Satoru and Nakazawa, Koh and Koike, Shoichiro and Kamijo, Atsushi and Matsubayashi, Kiyoshi and Miyabayashi, Hideharu and Furuta, Kiyoshi and Kitano, Kiyoshi and Yoshizawa, Kaname and Tanaka, Eiji}, issue = {3}, journal = {JOURNAL OF KOREAN MEDICAL SCIENCE}, month = {Oct}, note = {Granulocyte-colony stimulating factor (G-CSF) is a naturally occurring glycoprotein that stimulates the proliferation and maturation of precursor cells in the bone marrow into fully differentiated neutrophils. Several reports of G-CSF-producing malignant tumors have been published, but scarcely any in the hepatobiliary system, such as in hepatocellular carcinoma (HCC). Here, we encountered a 69-yr-old man with a hepatic tumor who had received right hepatic resection. He showed leukocytosis of 25,450/mL along with elevated serum G-CSF. Histological examination of surgical samples demonstrated immunohistochemical staining for G-CSF, but not for G-CSF receptor. The patient survived without recurrence for four years, but ultimately passed away with multiple bone metastases. In light of the above, clinicians may consider G-CSF-producing HCC when encountering patients with leukocytosis and a hepatic tumor. More cases are needed to clarify the clinical picture of G-CSF-producing HCC., http://jkms.org/ | http://jkms.org/, Article, JOURNAL OF KOREAN MEDICAL SCIENCE. 25(3):476-480 (2010)}, pages = {476--480}, title = {A Case of Granulocyte-Colony Stimulating Factor-Producing Hepatocellular Carcinoma Confirmed by Immunohistochemistry}, volume = {25}, year = {2010} }