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¿øÀå ¹ÌºÎ ³¶Á¾¿¡¼­ ¹ß»ýÇÑ À¯¾ÏÁ¾ 1¿¹ Carcinoid Tumor Arising within a Tailgut Cyst -A Case Report-

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ÀÌö¹Î ( Lee Chul-Min ) 
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À̽ÂÇö ( Lee Seung-Hyun ) 
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Àüâ¿Ï ( Jeon Chang-Wan ) 
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¾Èº´±Ç ( Ahn Byung-Kwon ) 
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¹é½Â¾ð ( Baek Sung-Uhn ) 
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Abstract

¿øÀå ¹ÌºÎ ³¶Á¾Àº ¹è¾Æ µÚÀå°ü¿¡¼­ ¹ß»ýÇÏ´Â ¼±Ãµ¼º ³¶Á¾À¸·Î, ¸Å¿ì µå¹°°Ô ¹ß°ßµÇ°í ÀÖ´Ù. ÁÖ·Î Àüõ°ñ°­¿¡¼­ ¹ß°ßµÇ¸ç, ¾ç¼º ³¶Á¾ÀÎ °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖÀ¸¸ç ¾Ç¼ºÀÎ °æ¿ì´Â ¸Å¿ì µå¹°´Ù. ÀúÀÚµéÀº Àüõ°ñ°­¿¡¼­ ¹ß°ßµÈ ¿øÀå ¹ÌºÎ ³¶Á¾¿¡ »ý±ä À¯¾ÏÁ¾ 1¿¹¸¦ º¸°íÇÏ°íÀÚ ÇÑ´Ù. ȯÀÚ´Â °©ÀÛ½º·± Ç×¹® ºÎÀ§ µ¿ÅëÀ¸·Î º´¿øÀ» ¹æ¹®ÇÏ¿´À¸¸ç, Á÷Àå ¼öÁö °Ë»ç¿¡¼­ Ç×¹®¿¬ 4 cm »ó¹æ, Èĺ®¿¡ Á¡¸·ÇÏ Á¾¹°ÀÌ ¸¸Á®Á³´Ù. ¿¡½º»ó°áÀå°æ °Ë»ç¿¡¼­ Á¾¹°À» µ¤°í ÀÖ´Â Á¡¸·Àº Á¤»óÀûÀ̾ú´Ù. Ç×¹®À» ÅëÇÑ Á¶Á÷ °Ë»ç¸¦ ½ÃÇàÇÏ¿© ¾Ç¼º ½Å°æ³»ºÐºñ Á¾¾çÀ¸·Î Áø´ÜµÇ¾ú´Ù. ¼ö¼úÀº º¹È¸À½ÀýÁ¦¼úÀÌ ½ÃÇàµÇ¾ú´Ù. Á¾¾çÀº °íÇü ¼ººÐÀ» ÇÔÀ¯ÇÑ ´Ù³¶¼ºÀÇ Á¾¹°·Î, ¿øÁÖ¼¼Æ÷, ÀԹ漼Æ÷, ÀÌÇ༼Æ÷¿Í °°Àº ¿©·¯ Á¾·ùÀÇ ¼¼Æ÷·Î »óÇÇ Á¶Á÷À» ÀÌ·ç°í ÀÖÀ¸¸ç, °íÇü ¼ººÐÀº À¯¾ÏÁ¾À̾ú´Ù. ¼ö¼ú 6°³¿ù ÈÄ ÃßÀû°Ë»ç¿¡¼­ °£ ¹× ³ú ÀüÀÌ ¼Ò°ßÀ» º¸¿´´Ù.

Tailgut cysts are rare congenital lesions. They are believed to develop from remnants of the embryonic hindgut. Malignancy in tailgut cyst is extremely unusual. We experienced a case of a carcinoid tumor arising within a tailgut cyst at the presacral space. A 40-year-old woman was admitted for acute anal pain. Digital rectal examination revealed a 2-cm-sized submucosal tumor in the posterior midline rectum 4 cm above the anal verge. On sigmoidoscopic examination, the overlying rectal mucosa seemed to be intact. We performed a transanal incisional biopsy. The pathological diagnosis of the tumor biopsy revealed a malignant neuroendocrine tumor. The patient underwent an abdominoperineal resection. The tumor proved to be mutilocular cysts with a solid component. The cysts were diagnosed as tailgut cysts that were lined by a variety of epithelial types, including inner columnar cells, outer cuboidal cells, and transitional cells. The solid component in the cysts was confirmed as a carcinoid tumor on microscopic examination. Six months after the operation, she was found to have liver and brain metastases. J Korean Soc Coloproctol 2007;23:65-67

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Tailgut cyst;Carcinoid

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