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½Å¼¼Æ÷¾ÏÀÇ T2¿Í T3a º´±â°£ÀÇ °¨º°¿¡ ´ëÇÑ Àü»êÈ­´ÜÃþÃÔ¿µÀÇ À¯¿ë¼º Usefulness of CT Scan in Differentiation of T2 from T3a in Renal Cell Carcinoma

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Abstract

¸ñÀû:½Å¼¼Æ÷¾ÏÀÇ T2¿Í T3a º´±â¸¦ °¨º°Çϴµ¥ ÀÖ¾î CT¼Ò°ßÀÇ À¯¿ë¼ºÀ» ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù.
´ë»ó°ú ¹æ¹ý:¼ö¼ú ÈÄ Á¶Á÷ÇÐÀûÀ¸·Î È®ÁøµÈ ½Å¼¼Æ÷¾Ï ȯÀÚ Áß TNM º´±â T2¿ÍT3a¿¡ ¼ÓÇß´ø
114¸íÀ» º´¸®¼Ò°ßÀ» ±âÁØÀ¸·Î Á¤»óÇǸ·±º (T2,n=40),ÇǸ·Ä§¹ü±º (T2,n=38),±×¸®°í ÇǸ·
°üÅ뱺 (T3a,n=36)À¸·Î ³ª´©¾î °¢°¢ÀÇ ±º¿¡¼­ Á¶¿µÁõ°­ CT»ó Á¾±« ¿Ü¿¬ÀÇ ¸ð¾ç,½ÅÀå ÁÖÀ§
·Î ÀÚ¶ó³­ Á¾±«ÀÇ Å©±â,Á¾±« ÁÖº¯ ÃøºÎ¼øȯÇ÷°ü À¯¹«,½Å±Ù¸·ÀÇ ºñ´ë À¯¹«,½ÅÁÖÀ§°­³» °¡´Ú¾ç
¿¬Á¶Á÷À½¿µ À¯¹«µîÀÇ ¼Ò°ß¿¡ Â÷ÀÌ°¡ ÀÖ´ÂÁö ÈÄÇâÀûÀ¸·Î ºÐ¼®ÇÏ¿´´Ù.
°á°ú:Á¾±«ÀÇ ¿Ü¿¬ÀÌ ºÒ±ÔÄ¢ÇÑ ºóµµ´Â ÇǸ·°üÅ뱺¿¡¼­ ³ª¸ÓÁö µÎ ±ºº¸´Ù À¯ÀÇÇÏ°Ô ¸¹¾ÒÀ¸¸ç
(p<0.05),½ÅÀå ÁÖÀ§·Î ÀÚ¶ó³­ Á¾±«ÀÇ Å©±â°¡ 3 cm ÀÌ»óÀ̾ú´ø °æ¿ì,Á¾±« ÁÖº¯ºÎ ÃøºÎ¼øȯ
Ç÷°ü,½Å±Ù¸·ÀÇ ºñ´ë ¹× ½ÅÁÖÀ§°­³» °¡´Ú¾ç ¿¬Á¶Á÷À½¿µÀÌ º¸¿´´ø °æ¿ì´Â ÇǸ·°üÅ뱺°ú ÇǸ·Ä§
¹ü±º¿¡¼­ Á¤»óÇǸ·±ºº¸´Ù ¸¹¾ÒÀ¸³ª (p<0.05),ÇǸ·°üÅ뱺°ú ÇǸ·Ä§¹ü±º¿¡´Â À¯ÀÇÇÑ Â÷ÀÌ°¡ ¾ø¾ú´Ù (p>0.05).
°á·Ð:½Å¼¼Æ÷¾ÏÀÇ º´±âÆÇÁ¤¿¡ ÀÖ¾î T3a º´¼Ò¿Í ½ÅÇǸ·À» ħ¹üÇÏÁö ¾ÊÀº T2 º´¼Ò¿Í´Â CT»ó °¨
º°ÀÌ ¿ëÀÌÇÏÁö¸¸,T3a º´¼Ò¿Í ½ÅÇǸ·À» ħ¹üÇÑ T2 º´¼Ò°£¿¡´Â °¨º°ÀÌ ¾î·Æ°í ÀÌ °æ¿ì Á¾¾çÀÇ
¿Ü¿¬ÀÌ ºÒ±ÔÄ¢Çϸé T3a º´±â¸¦ °í·ÁÇØ¾ß ÇÑ´Ù.

Purpose: To assess the usefulness of CT scanning in the differentiation of stage T3a from T2 in renal cell carci-noma. Materials and Methods: Among patients with pathologically proven renal cell carcinoma, 114 at stages T2 and T3a were divided
into
three groups, as follows: intact capsule (T2) n=40, capsular involvement (T2) n=38, and capsular penetration (T3a) n=36. By referring to contrast-enhanced CT scans, we retrospectively compared the groups in terms of tumor margin, the frequency
with
which a tumor bulged more than 3 cm beyond the renal contour, the presence or absence of peritumoral collateral vessels, thickening of Gerota ¡¯s fascia, and perinephric strands.
Results: An irregular margin was more common in the capsular penetration group than in the other two groups (p<0.05). With regard to frequency of tumor bulging, the presence of peritumoral collateral vessels, thickening of Gerota ¡¯s fascia, and
perinephric strands, these characteristics were more frequently noted in the capsular penetration group (T3a) and capsular involvement group (T2) (p<0.05) than in the intact capsule group. The difference between the capsular penetration group
(T3a)
and
the capsular involvement group (T2) was not significant, however (p>0.05).
Conclusion: In determining the tumor stage of renal cell carcinoma, CT is not helpful in differentiating between a tumor with capsular penetration (T3a) and one with capsular invasion (T2), though differentiation of the T3a stage from the T2
stage,
without capsular invasion, is reliable. When a tumor has an irregular margin, however, the possibility that it is at stage T3a should be considered.

Å°¿öµå

Kidney; CT; Kidney neoplasm; staging; Kidney neoplasm; diagnosis;

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