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Clinical Usefulness of Bile Cytology Obtained from Biliary Drainage Tube for Diagnosing Cholangiocarcinoma
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È«½Â¸ð(Hong Seung-Mo) - ¿ï»ê´ëÇб³ Àǰú´ëÇÐ ¼¿ï¾Æ»êº´¿ø º´¸®Çб³½Ç
±è¸íȯ(Kim Myung-Hwan) - ¿ï»ê´ëÇб³ Àǰú´ëÇÐ ¼¿ï¾Æ»êº´¿ø ³»°úÇб³½Ç
Abstract
¸ñÀû: ´ëºÎºÐÀÇ ´ãµµ¾Ï ȯÀÚ´Â Æó¼â¼º Ȳ´ÞÀÌ ÀÖÀ¸¸ç, À̸¦ ÇØ°áÇϱâ À§ÇØ ³»½Ã°æÀû °æºñ´ãµµ¹è¾×¼ú ȤÀº °æÇǰ氣´ãµµ ¹è¾×¼ú°ú °°Àº ½Ã¼úÀ» ½ÃÇàÇÏ°Ô µÈ´Ù. À̸¦ ÅëÇÑ ´ãÁ󼼯÷Áø °Ë»ç´Â ½±°Ô ½ÃÇàµÉ ¼ö ÀÖ´Â Á¶Á÷ °Ë»ç ¹æ¹ý ÁßÀÇ ÇϳªÀÌ´Ù. ´ãÁ󼼯÷Áø°Ë»çÀÇ Áø´ÜÀ² ¹× ÀÌ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ¿äÀο¡ ´ëÇØ¼ ¾Ë¾Æº¸°íÀÚ ÇÑ´Ù.
´ë»ó ¹× ¹æ¹ý: 2000³â 1¿ùºÎÅÍ 2012³â 6¿ù±îÁö ¼¿ï¾Æ»êº´¿ø ¿¡¼ ´ãµµ¾ÏÀ¸·Î Áø´Ü¹ÞÀº ȯÀÚ Áß ´ãÁ󼼯÷Áø°Ë»ç¸¦ ½ÃÇàÇÑ È¯ÀÚ 766¸íÀ» ´ë»óÀ¸·Î ½ÃÇàÇÑ ÈÄÇâÀû ¿¬±¸ÀÌ´Ù.
°á°ú: ´ãÁ󼼯÷Áø°Ë»çÀÇ ¹Î°¨µµ´Â 24.7%¿´´Ù. ¼ÖÁú¼¼Æ÷Áø°Ë»ç ¹× ´ãµµ°âÀÚ»ý°Ë¹ýÀÇ ¹Î°¨µµ´Â 34.5%, 74.4%¿´À¸¸ç, À̸¦ ´ãÁ󼼯÷Áø°Ë»ç¿Í °áÇÕÇßÀ» °æ¿ìÀÇ ¹Î°¨µµ´Â °¢°¢ 38.2%, 77.9%¿´´Ù. ´ãÁ󼼯÷Áø°Ë»çÀÇ ´©Àû ¾ç¼º·üÀº ù ¹øÂ° °Ë»ç¿¡¼ 40.7%¿´À¸³ª ¼¼ ¹øÂ° °Ë»ç¿¡¼´Â 93.1%¸¦ º¸¿´´Ù. ´ãÁó¼¼ Æ÷Áø°Ë»çÀÇ Áø´ÜÀ²¿¡ ¿µÇâÀ» ÁÖ´Â ¿äÀεéÀº Á¾¾çÀÇ À§Ä¡°¡ °£¹®ºÎÀÎ °æ¿ì, À°¾ÈÀû Á¾¾ç ÇüŰ¡ ´ãµµ³»¼ºÀåÇüÀÎ °æ¿ì, Á¾¾ç ħ¹ü Å©±â°¡ 20 mm ÀÌ»óÀÎ °æ¿ì, ºÐȵÇÁö ¾ÊÀº ¼±¾ÏÀÎ °æ¿ì, Àû¾îµµ 3ȸ ÀÌ»ó ¹Ýº¹ °Ë»ç¸¦ ½ÃÇàÇßÀ» °æ¿ì°¡ Åë°èÀûÀ¸·Î À¯ÀÇÇÑ ¾ç¼º ¿¹Ãø ¿äÀÎÀÎ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
°á·Ð: ´ãÁ󼼯÷Áø°Ë»ç ÀÚüÀÇ ¹Î°¨µµ´Â ³·Áö¸¸, ´Ù¸¥ Á¶Á÷°Ë»çµé°ú °áÇÕÇÏ¿´À» ¶§ Ãß°¡ÀûÀÎ Áø´ÜÀûÀÎ °¡Ä¡¸¦ °¡Áö¸ç, ´ãÁ󼼯÷Áø°Ë»çÀÇ Áø´ÜÀ²¿¡ ¿µÇâÀ» ÁÖ´Â ´Ù¼¸ °¡Áö ¿äÀÎÀ» È®ÀÎÇß´Ù. ´ãÁ󼼯÷Áø°Ë»ç´Â ½±°í, Àú·ÅÇÑ ºñ¿ëÀ¸·Î ½ÃÇàµÉ ¼ö ÀÖ´Â ÇÕ¸®ÀûÀÎ º¸¿Ï¹æ¹ýÀÌ´Ù.
Background/Aims: Biliary drainage is performed in many patients with cholangiocarcinoma (CCA) to relieve obstructive jaundice. For those who have undergone biliary drainage, bile cytology can be easily performed since the access is already achieved. This study aims to determine the clinical usefulness of bile cytology for the diagnosis of CCA and to evaluate factors affecting its diagnostic yield.
Methods: A total of 766 consecutive patients with CCA underwent bile cytology via endoscopic nasobiliary drainage or percuta-neous transhepatic biliary drainage from January 2000 to June 2012. Data were collected by retrospectively reviewing the medical records. We evaluated the diagnostic yield of bile cytology with/without other sampling methods including brush cytology and endobiliary forcep biopsy, and the optimal number of repeated bile sampling. Several factors affecting diagnostic yield were then analyzed.
Results: The sensitivity of bile cytology, endobiliary forceps biopsy, and a combination of both sampling methods were 24.7% (189/766), 74.4% (259/348), and 77.9% (271/348), respectively. The cumulative positive rate of bile sampling increased from 40.7% (77/189) at first sampling to 93.1% (176/189) at third sampling. On multivariate analysis, factors associated with positive bile cytology were perihilar tumor location, intraductal growing tumor type, tumor extent ¡Ã20 mm, poorly differ-entiated grade tumor, and three or more samplings.
Conclusions: Although bile cytology itself has a low sensitivity in diagnosing CCA, it has an additive role when combined with endobiliary forceps biopsy. Due to the relative ease and low cost, bile cytology can be considered a reasonable complementary diagnostic tool for diagnosing CCA.
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Bile cytology, Cholangiocarcinoma, Endoscopic nasobiliary drainage, Percutaneous transhepatic biliary drainage
KMID :
0614620140630020107
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