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Abstract

¸ñ Àû : ¼ö¼ú°ú ¹æ»ç¼±Ä¡·á¸¦ ¹ÞÀº ÀÌÇϼ± ¾Ç¼ºÁ¾¾ç¿¡¼­ ±¹¼Ò Á¾¾ç Á¦¾îÀ²¿¡ ¿µÇâÀ» ÁÖ´Â
¿äÀÎÀ» ¾Ë±â À§ÇÏ¿© º» ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý : 1986³âºÎÅÍ 1995³â±îÁö Àü³²´ëÇб³º´¿ø¿¡¼­ ÀÌÇϼ± ¾Ç¼º Á¾¾çÀ¸·Î ¼ö¼ú°ú
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±îÁö¿´°í Áß¾Ó°ªÀº 55¼¼¿´´Ù. Á¶Á÷ÇÐÀû À¯Çüº° ºÐÆ÷´Â 10¸íÀÌ Á¡¾×Ç¥ÇǾç¾ÏÁ¾, 7¸íÀÌ ÆíÆò»ó
ÇǼ¼Æ÷¾Ï, 4¸íÀÌ Æ÷»ó¼¼Æ÷¾Ï, 4¸íÀÌ ¼±¾ç¼º³¶Á¾¾Ï, 1¸íÀÌ ¼±¾ÏÀ̾ú´Ù. ¼ö¼úÀº 15¸íÀÌ ÀÌÇϼ±
ÀüÀýÁ¦¼ú, 7¸íÀÌ Ç¥À缺 ÀýÁ¦¼ú, 4¸íÀÌ ¾ÆÀüÀýÁ¦¼úÀ» ¹Þ¾Ò´Ù. ¾È¸é½Å°æÀÌ ÀýÁ¦µÈ °æ¿ì´Â 5¸í
ÀÖ¾ú´Ù. ¼ö¼ú ÈÄ º´¸®ÇÐÀûÀ¸·Î ÀÜÁ¸ º´º¯ÀÌ ÀÖ¾ú´ø °æ¿ì°¡ 4¸í, ÀýÁ¦¿¬ ¾ç¼ºÀÌ 4¸íÀ̾ú´Ù.
¹æ»ç¼±Ä¡·á´Â ¼±Çü°¡¼Ó±âÀÇ ±¤ÀÚ¼±°ú ÀüÀÚ¼±¼ÓÀ» »ç¿ëÇÏ¿´´Ù. 26¸í Áß 11¸íÀº ±¤ÀÚ¼±¸¸À¸·Î
Ä¡·áÇÏ¿´°í ÀüÀÚ¼±ÀÌ º´¿ëµÈ °æ¿ì´Â 15¸íÀ̾úÀ¸¸ç ÀüÀÚ¼±·®Àº 900 cGyºÎÅÍ 3800 cGy (Áß¾Ó
°ª: 1760 cGy)±îÁö¿´´Ù. ÀÌÇϼ±Á¾¾ç ºÎÀ§¿¡ Á¶»çµÈ Ãѹæ»ç¼±·®Àº 5000 cGyºÎÅÍ 7560 cGy
(Áß¾Ó°ª: 6020 cGy)±îÁö¿´´Ù. ´ë»ó ȯÀÚµéÀÇ ÃÖ¼ÒÃßÀû±â°£Àº 2³âÀ̾ú´Ù. ±¹¼ÒÁ¾¾çÁ¦¾îÀ²ÀÇ
»êÃâÀº Kaplan-Meier¹ýÀ» ÀÌ¿ëÇÏ¿´°í ´Üº¯·®ºÐ¼®¿¡´Â generalized Wilcoxon test, ´Ùº¯·®ºÐ
¼®¿¡´Â Cox ¸ðµ¨À» ÀÌ¿ëÇÏ¿´´Ù.
°á °ú : ¹æ»ç¼± Ä¡·á ÈÄ ±¹¼ÒÁ¾¾çÀÇ Àç¹ßÀº 26¸í Áß 5¸í (19%)¿¡¼­ °üÂûµÇ¾úÀ¸¸ç ±¹¼ÒÁ¾
¾çÁ¦¾îÀ²Àº 5³â¿¡ 77%¿´´Ù. ȯÀÚÀÇ 5³â »ýÁ¸À²Àº 70%¿´´Ù ¼ºº°, ¿¬·É (>60¼¼), Á¾¾çÅ©±â
(>4 cm), ¼ö¼ú¼Ò°ß»ó °æºÎ¸²ÇÁÀý ħ¹ü°ú ½Å°æ ħ¹ü, ÀýÁ¦¿¬ ħ¹ü ¿©ºÎ ¹× Ãѹæ»ç¼±·® (>60
Gy)ÀÇ ¿äÀÎÀÌ ±¹¼Ò Á¾¾ç Á¦¾îÀ²¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ´Üº¯·® ºÐ¼®ÇÑ °á°ú Á¾¾ç Å©±â (p=0.002),
ÀýÁ¦¿¬ ħ¹ü ¿©ºÎ(p=0.011)¿¡ µû¶ó ±¹¼ÒÁ¾¾çÁ¦¾îÀ²¿¡ À־ Åë°èÇÐÀûÀ¸·Î ÀÇÀÇ°¡ ÀÖ´Â Â÷
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¾îÀ²¿¡ °ü·ÃÀÌ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
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Purpose : This study was Performed to analyze the factors affecting local control in
malignant tumors of the carotid 91an4 treated with surgery and postoperative radiation.
Materials and Methods : Twenty-six Patients were treated for malignant tumors of
the parotid gland from 1986 to 1995 at Department of Therapeutic Radiology. Chonnam
University Hospital. Age of the patients ranged from 14 to 72 years (median : 55 years).
Histologically 10 patients of mucoepidermoid carcinoma, 7 of squamous cell carcinoma. 4
of acinic cell carcinoma, 4 of adenoid cystic carcinoma and 1 of adenocarcinoma were
treated. Total parotidectomy was performed in 15 of 26 Patients, superficial in 7,
subtotal in 4. Facial nerve was sacrificed in 5 patients. Postoperatively 4 patients had
residual disease, 4 had positive resection margin. Radiation was delivered through an
ipsilateral wedged pair of photon in 11 patients. High energy electron beam was mixed
with photon in 15 patients. Electron beam dose ranged from 900 cGy to 3800 cGy
(median : 1760 cGy). Total radiation dose ranged from 5000 cGy to 7560 cGy (median :
6020 cGy). Minimum follow-up period was 2 years. Local control and survival rate were
calculated using Kaplan-Meier method. Generalized Wilcoxon test and Cox proportional
hazard model were used to test factors affecting local control.
Results : Five (19%) of 26 patients had local recurrence. Five years local control rate
was 77%. Overall five years survival rate was 70%. Sex, age, tumor size, surgical
involvement of cervical lymph node, involvement of resection margin, surgical invasion
of nerve, and total dose were analyzed as suggested factors affecting local control rate.
Among them patients with tumor size less than 4 cm (p=0.002) and negative resection
margin (p=0.011) were associated with better local control rates in univariate analysis.
Multivariate analysis showed only tumor size factor is associated with local control rate
(p=0.022).
Conclusion : This study suggested that tumor size is important in local control of
malignant tumors of carotid gland.

Å°¿öµå

Parotid gland malignancy; Postoperative radiotherapy; Local control rate;

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