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Abstract

¸ñ Àû: À¯¹æ °ü»óÇdz»¾Ï ȯÀÚµéÀÇ À¯¹æ º¸Á¸¼ú ¹× ¹æ»ç¼± Ä¡·á ÈÄ »ýÁ¸À²°ú ±¹¼Ò Àç¹ß·ü, Àç¹ß ¾ç»ó ¹× ±¹¼Ò Àç¹ß¿¡ ¿µÇâÀ» ÁØ ÀÎÀÚµéÀ» ºÐ¼®ÇÏ°í, ÀûÀýÇÑ Ä¡·á¹ýÀ» °áÁ¤ÇÏ°íÀÚ ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: 1995³â 6¿ùºÎÅÍ 2001³â 12¿ù±îÁö À¯¹æ °ü»óÇdz»¾ÏÀ¸·Î À¯¹æ º¸Á¸¼ú ÈÄ ¹æ»ç¼± Ä¡·á¸¦ ¹Þ¾Ò´ø 96¸íÀÇ È¯ÀÚ¸¦ ´ë»óÀ¸·Î ÈÄÇâÀû ºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. ¼ö¼úÀº ±¹¼Ò ÀýÁ¦ ¶Ç´Â ±¤¹üÀ§ ÀýÁ¦°¡ ½ÃÇàµÇ¾ú°í, ÀϺο¡¼­ ¾×¿Í ¸²ÇÁÀý °ûû¼úÀÌ ½ÃÇàµÇ¾ú´Ù. ¹æ»ç¼± Ä¡·á´Â Àü À¯¹æ¿¡ 50.4 Gy /28ȸ¸¦ Á¶»çÇÏ¿´°í, Àý´Ü¸é¿¡ Á¾¾çÀÌ Àְųª Àý´Ü¸é¿¡¼­ Á¾¾çÀÌ °¡±î¿ü´ø °æ¿ì(¡Â 2 mm) ÀϺο¡¼­ Á¾¾çÀÌ ÀÖ¾ú´ø ºÎÀ§¿¡ 10¢¦14 Gy¸¦ Ãß°¡ Á¶»çÇÏ¿´´Ù. Àüü ȯÀÚÀÇ Áß¾Ó ÃßÀû °üÂû±â°£Àº 43°³¿ù(12¢¦102°³¿ù)À̾ú´Ù.

°á °ú: 5³â ±¹¼Ò ¹«º´»ýÁ¸À², »ýÁ¸À²Àº °¢°¢ 91%, 100%¿´´Ù. ±¹¼Ò Àç¹ßÀº 6¸í(6.3%)¿¡¼­ ¹ß»ýÇÏ¿´°í, ÀÌ Áß Ä§À±¼º À¯¹æ¾ÏÀ¸·Î Àç¹ßÇÑ È¯ÀÚ´Â 1¸íÀ̾ú´Ù. ¼ö¼ú¿¡¼­ Àç¹ß±îÁöÀÇ ±â°£Àº 1¸íÀ» Á¦¿ÜÇÏ°í´Â ¸ðµÎ 2³â ÀÌ»óÀ̾ú´Ù. ÁÖÀ§ ¸²ÇÁÀý Àç¹ßÀ̳ª ¿ø°ÝÀüÀÌ´Â ¾ø¾ú´Ù. Àç¹ßÇÑ È¯ÀÚ Áß 5¸íÀº À¯¹æ ÀüÀýÁ¦¼ú ÈÄ ¹«º´»ýÁ¸ ÁßÀÌ°í, 1¸íÀº ±¸Á¦ Ä¡·á ¿¹Á¤ÀÌ´Ù. ±¹¼Ò Àç¹ß¿¡ ¿µÇâÀ» ÁØ ÀÎÀڵ鿡 ´ëÇØ ºÐ¼®ÇßÀ» ¶§, ¿¬·É, Àý´Ü¸é »óÅÂ, comedo type, ÇÙºÐÈ­µµ ¸ðµÎ ±¹¼Ò Àç¹ß¿¡ ¿µÇâÀ» ÁÖÁö ¾Ê´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼ö¼ú ¹üÀ§¿¡ µû¶ó¼­µµ ±¹¼Ò Àç¹ß¿¡ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò°í(p=0.30), Àý´Ü¸éÀÌ Á¾¾ç¿¡¼­ °¡±î¿ü´ø °æ¿ì Ãʱâ Á¾¾ç ºÎÀ§¿¡ Ãß°¡ Á¶»çµµ ±¹¼Ò Àç¹ß¿¡ ¿µÇâÀ» ÁÖÁö ¾Ê¾Ò´Ù(p=1.0).

°á ·Ð: À¯¹æ °ü»óÇdz»¾ÏÀÇ Ä¡·á·Î À¯¹æ º¸Á¸¼ú ¹× ¹æ»ç¼± Ä¡·á ½ÃÇà ÈÄ ³ôÀº ±¹¼Ò Á¦¾îÀ²°ú »ýÁ¸À²À» ¾òÀ» ¼ö ÀÖ¾ú´Ù. Á¾¾çÀÌ Àý´Ü¸éÀ» ħ¹üÇÏÁö ¾Ê´Â ÇÑ Àý´Ü¸é°ú Á¾¾ç°úÀÇ °Å¸®¿Í Ãß°¡ ¹æ»ç¼± Á¶»ç´Â ±¹¼Ò Àç¹ß¿¡ ¿µÇâÀ» ÁÖÁö ¾Ê´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸³ª ÇâÈÄ ´õ ¸¹Àº ȯÀÚ·Î Àå±âÀûÀÎ ÃßÀû°üÂûÀÌ ÇÊ¿äÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.

Purpose: To evaluate the survival rate, local failure rate and patterns of failure, and analyze the prognostic factors affecting local relapse of ductal carcinoma in situ treated with breast conserving surgery and radiotherapy

Materials and Methods: From June 1995 to December 2001, 96 patients with ductal carcinoma in situ treated with breast conserving surgery and radiotherapy were retrospectively analyzed. The operations were either local or wide excision in all patients, with an axillary lymph node dissection performed in some patients. Radiation dose to the whole breast was 50.4 Gy, over 5 weeks, with 1.8 Gy daily fractions, with additional doses (10¢¦14 Gy) administered to the primary tumor bed in some patients with close (¡Â2 mm) or positive resection margin. The median follow-up period was 43 months (range 12¢¦102 months).

Results: The 5-year local relapse free survival and overall survival rates were 91 and 100% respectively. Local relapse occurred in 6 patients (6.3%). Of the 6 recurrences, one was invasive ductal cell carcinoma. With the exception of one, all patients recurred 2 years after surgery. There was no regional recurrence or distant metastasis. Five patients with local recurrence were salvaged with total mastectomy, and are alive with no evidence of disease. One patient with recurrent invasive ductal cell carcinoma will receive salvage treatment. On analysis of the prognostic factors affecting local relapse, none of the factors among the age, status of resection margin, comedo type and nuclear grade affected local relapse. Operation extent also did not affect local control (p=0.30). In the patients with close resection margin, boost irradiation to the primary tumor bed did not affect local control (p=1.0).

Conclusions: The survival rate and local control of the patients with ductal carcinoma in situ treated with breast conserving surgery and radiotherapy were excellent. Close resection margin and boost irradiation to the primary tumor bed did not affect local relapse, but further follow-up with much more patients is needed.



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À¯¹æ °ü»óÇdz»¾Ï;À¯¹æ º¸Á¸¼ú;¹æ»ç¼± Ä¡·á;Ductal carcinoma in situ;Breast conserving surgery;Radiotherapy

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