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À¯¹æ¾ÏȯÀÚÀÇ À¯¹æº¸Á¸¼ö¼ú ÈÄ ¹æ»ç¼± Ä¡·á ¼ºÀû Radiation Therapy for Operable Breast Cancer after Conservative Surgery

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Abstract

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24¼¼ºÎÅÍ
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ħÀ±ÀÌ ÀÖ¾ú´Ù. ¿ø¹ß Á¾¾çÀ§Ä¡·Î ³»ÃøÀÌ 13¸í, ¿ÜÃøÀÌ 38¸í À¯µÎ ÇÏ ºÎÀ§°¡ 2¸íÀ̾ú´Ù, ¹æ»ç¼± Á¶»ç´Â ÀüüÀ¯¹æ¿¡ 46~50 §í¿Í ¿ø¹ß Á¾¾ç ÁÖÀ§¿¡ 14~18 §í Ãß°¡Á¶»ç¸¦ ½ÃÇàÇÏ¿´´Ù.

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°á·Ð: À¯¹æ º¸Á¸ ¼ö¼ú ÈÄ ¹æ»ç¼± Ä¡·á¸¦ ¹ÞÀº Á¶±â À¯¹æ¾ÏȯÀÚÀÇ Ä¡·á°á°ú´Â ¾çÈ£ÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ±¹¼Ò Àç¹ßÀ²Àº ÃßÀû±â°£ÀÌ ±æ¼ö·Ï Áõ°¡ÇÔÀ¸·Î º¸´Ù ´õ Àå±âÀûÀÎ ÃßÀûÀÌ ÇÊ¿äÇÏ°í ÀþÀº ¿¬·ÉÃþÀÇ Ä¡·á °á°ú¸¦ Çâ»ó½ÃÅ°±â À§ÇØ º¸´Ù È¿°úÀûÀÎ Ä¡·á¹ýÀÇ
°³¹ßÀÌ
ÇÊ¿äÇϸ®¶ó »ý°¢µÈ´Ù.

Purpose: To evaluate the result of conservative management on recurrence, survival and prognostic factors of patient with operable breast cancer.

Materials and Methods: Fifty three patients, treated for localized breast cancer by lumpectomy or quadrantectomy followed by radiotherapy between January 1985 and December 1996, were retrospectively studied. All patients followed up for at
least
five years. Their median age was 43 years (range 24~72). The tumor stages were as follows:T1 in 30 patients, T2 in 21, Tis in 2. Thirty-eight patients had negative and 15 had positive axillary nodes. The histological types were 42 infiltrating
ductal, 2
infiltrating lobular, and 2 intraductal carcinomas with 7 other histologies. The tumor locations were the outer quadrant in 38 breasts, the inner quadrant in 13 and central in 2. Radiation doses of 46~50 §í were given to the entire breast areas
with
additional doses of 14-18 §í delivered to the tumor bed areas.

Results: The overall five and 10 year actuarial and disease free survivals were 94.3 % and 92.4%, 91.2 and 81%, respectively. The overall five year survivals were 100% in stage ¥° and ¥±a, and 66.7% in stage ¥±b and ¥²a tumors. Seven
patients
failed either locally or distantly. Incidence of local failure and distant metastasis for the first failure were 7.5% and 5.7%, respectively. Local recurrence appeared within 2 years of treatment at the primary site and after more than 8 years
outside
of primary lesion, whereas distant metastasis appeared between 2 and 6 years following treatment. The overall recurrences were high at a young age (< or = 35 years), with 5 out of 12 (2 local, 3 distant), and in T2 lesions with 5 out of 21 (1
local, 3
distant, and 1 in both). Distant metastasis was high in the positive axillary lymph node group with 4 out of 15 (26.6%). A high incidence in the axillary node was noted at a young age with 7 out of 12 (58.3%) and in T2 lesions with 8 out of 21
(38.4%).
A young age, positive axillary node and large tumor size were all related with poor survival.

Conclusion: Based on this study, lumpectomy or quadrantectomy, followed by radiation appears to be an adequate therapeutic method in operable breast cancer. A long term follow-up is necessary because a recurrence of breast can occur long
time
after treatment. The poor prognostic group, especially young patients with an aggressive biological behavior needs more effective treatment modalities to improve their survival.

Å°¿öµå

À¯¹æº¸Á¸¼ö¼ú ÈÄ ¹æ»ç¼±Ä¡·á; Breast cancer; Conservative surgery and radiation;

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