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¥â-hCGºÐºñ¼º µÎ°³³» ¹è¾ÆÁ¾: ÀÓ»óÀû Ư¼º ¹× ¹æ»ç¼±Ä¡·á °á°ú Intracranial ¥â-hCG Secreting Germinoma: Clinical Significance and Radiotherapy Results

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½Å°æȯ/Kyung Hwan Shin ±èÀÏÇÑ/°­À§»ý/ÇϼºÈ¯/¹ÚÂùÀÏ/±èÀÏÇÑ/°­À§»ý/ÇϼºÈ¯/¹ÚÂùÀÏ/Il Han Kim/Wee Saing Kang/Sung Whan Ha/Cham Il Park/Il Han Kim/Wee Saing Kang/Sung Whan Ha/Cham Il Park

Abstract

¸ñÀû : µÎ°³³» ¥â-hCGºÐºñ¼º ¹è¾ÆÁ¾ (¥â-hCG secreting germinoma)°ú ¥â-hCG¸¦ ºÐºñÇÏ
Áö ¾Ê´Â ¼ø¼ö ¹è¾ÆÁ¾ÀÇ ¿¹ÈÄÀû Â÷ÀÌ´Â ¾ÆÁ÷ Á¤È®È÷ ¾Ë·ÁÁ® ÀÖÁö ¾Ê´Ù. ÀúÀÚµéÀº À̵é Á¾¾ç
ÀÇ ÀÓ»óÀû ÀÇÀÇ ¹× ¹æ»ç¼±Ä¡·á½Ã ¿¹Èĸ¦ ¾Ë¾Æº¸±â À§ÇÏ¿© ÈÄÇâÀûºÐ¼®À» ½ÃÇàÇÏ¿´´Ù.
´ë»ó ¹× ¹æ¹ý : 1980³âºÎÅÍ 1996³â±îÁö º´¸®Á¶Á÷ÇÐÀûÀ¸·Î Áø´ÜµÇ°í, Ä¡·áÀü Ç÷û ȤÀº ³ú
ô¼ö¾× ¥â-hCC °Ë»ç¸¦ ½ÃÇàÇÑ 31¸íÀÇ µÎ°³³» ¹è¾ÆÁ¾ ȯÀڵ鿡°Ô ¹æ»ç¼±Ä¡·á°¡ ½ÃÇàµÇ¾ú´Ù.
6¸íÀÇ È¯ÀÚ¿¡¼­ ¥â-hCG°ªÀÇ »ó½ÂÀ» º¸¿´À¸¸ç À̵éÀ» ¥â-hCGºÐºñ¼º ¹è¾ÆÁ¾À¸·Î Á¤ÀÇÇÏ¿´
´Ù. 3¸íÀ» Á¦¿ÜÇÑ ³ª¸ÓÁö ¸ðµç ȯÀÚ¿¡¼­ µÎ°³Ã´¼öÁ¶»ç (craniospinal axis irradiation)°¡ ½ÃÇà
µÇ¾ú´Ù. ÃßÀû±â°£Àº 2 °³¿ù¿¡¼­ 175 °³¿ù·Î¼­, Áß¾Ó ÃßÀû±â°£Àº 62°³¿ùÀ̾ú´Ù.
°á°ú : ¥â-hCGºÐºñ¼º ¹è¾ÆÁ¾ÀÌ Â÷ÁöÇÏ´Â ºñÀ²Àº 19%À̾úÀ¸¸ç Ç÷û ¥â-hCGÀÇ »ó½ÂÄ¡ÀÇ
¹üÀ§´Â 39¡­260 mIU/§¢À̾ú´Ù. ¥â-hCGºñºÐºñ¼º ¹è¾ÆÁ¾°ú ºÐºñ¼º ¹è¾ÆÁ¾ °£ÀÇ È¯ÀÚ ¹× Ä¡
·áƯ¼ºÀÇ Â÷ÀÌ´Â ¾ø¾ú´Ù. 5³â Àüü»ýÁ¸·ü ¹× ¹«º´»ýÁ¸·üÀº ¥â-hCGºñºÐºñ¼º ¹è¾ÆÁ¾¿¡¼­
96%, ¥â-hCGºÐºñ¼º ¹è¾ÆÁ¾¿¡¼­ 100%·Î ³ªÅ¸³µÀ¸¸ç, Á¾¾ç°£ »ýÁ¸·üÀÇ Â÷ÀÌ´Â º¸ÀÌÁö ¾Ê¾Ò
´Ù (p=0.59).
°á·Ð : µÎ°³³» ¹è¾ÆÁ¾¿¡¼­ ÀÏÁ¤¹üÀ§(260 mIU/§¢) ÀÌÇÏÀÇ ¥â-hCG ºÐºñ À¯¹«´Â ÀÓ»óÀû Ư
¼º ¹× ±ÙÄ¡Àû ¹æ»ç¼±¿ä¹ýÀÇ °á°ú¿¡ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê´Â´Ù°í ÆǴܵȴÙ.

Intracranial germinoma comprises approximately 7.5% of all pediatric brain tumors in
Japan or Taiwan and is more common in East Asia than in Western countries.
Notwithstanding its low incidence, clinicians have great interest in intracranial
germinoma because it usually occurs in young age and is curable with radiotherapy
which might induce late sequelae to the less developed CNS.
Until now, elevated levels of alpha-fetoprotein (AFP) and beta subunit of human
chorionic gonadotropin (¥â-hCG) of intracranial germ cell tumors (IGCT) were
considered to be closely correlated with nongerminomatous germ cell tumors (NGGCT)
such as embryonal carcinoma, endodermal sinus tumor and choriocarcinoma, with ¥â
-hCG and AFP elevated in the first two and ¥â-hCG alone elevated in latter.
The existence of ¥â-hCG secreting germinoma is well known and it has been shown
that ¥â-hCG is produced by syncytiotrophoblastic giant cells (STGC) being often present
in germinoma, which differ from choriocarcinoma with its two trophoblastic components.
Because germinoma with STGC is a recently established subtype of germinoma, there
are several controversies in its clinical characteristics and prognosis compared to ¥â
-hCG non-secreting germinoma. Some suggested that ¥â-hCG secreting germinoma has
a higher relapse rate and thus needs more intensive treatment than ¥â-hCG
non-secreting germinoma does, while others showed no difference in prognosis. The
proper cut-off level of ¥â-hCG by which germinoma is diagnosed rather than NGGCT is
also debatable in clinical setting without histologic confirmation. There has been too few
information to answer these questions and previous reports have been concerned with
germ cell tumor with or without histologic evidence together.
Our goal was to clarify the influence of increased level of ¥â-hCG in intracranial
germinoma on the result of radical radiotherapy after histologic confirmation with
retrospective analysis of consecutive patients in a single institution.

Å°¿öµå

Intracranial germinoma; ¥â-hCG; Radiotherapy;

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