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[Hepatoid adenocarcinoma of the stomach. °£¾çÀ§¼±¾Ï]
Hepatoid adenocarcinoma´Â Á¶Á÷ÇÐÀûÀ¸·Î´Â adenocarcinoma¿Ü¿¡ °£¼¼Æ÷¼º ºÐȸ¦ º¸ÀÌ´Â ºÎºÐÀÌ µ¿ÀÏ ¾ÏÁ¾ ³»¿¡ °øÁ¸Çϸé¼, ³ôÀº Ç÷Áß alpha-fetoprotein(AFP)Ä¡¸¦ º¸ÀÌ´Â ¾ÏÁ¾À¸·Î 1985³â Ishikura¿¡ ÀÇÇØ Ã³À½À¸·Î ¸í¸íµÇ¾ú½À´Ï´Ù. °£¼¼Æ÷¼º ºÐȸ¦ º¸ÀÌ´Â »ù¾ÏÁ¾Àº À§Àå°ü, ³¼Ò, Æó, ´ã³¶, ÀÚ±Ã, ¹æ±¤ µîÀÇ ¿©·¯ ºÎÀ§¿¡¼ ¹ß»ýÇÒ ¼ö ÀÖ½À´Ï´Ù. À§¿¡ ¹ß»ýÇÑ °£¼¼Æ÷¾ç »ù¾ÏÁ¾Àº Áø´Ü ´ç½Ã ÁøÇàµÈ °æ¿ì°¡ ¸¹À¸¸ç ÀüÀÌÀ²ÀÌ ³ô°í ¿¹ÈÄ°¡ ºÒ·®ÇÕ´Ï´Ù. µå¹°±â ¶§¹®¿¡ ÀÓ»óÀûÀ¸·Î °£°úÇϱ⠽¬¿ö Áø´Ü¿¡ ÁÖÀÇ°¡ ÇÊ¿äÇÕ´Ï´Ù. (Âü°í¹®Çå : Korean J Med 73:107-111, 2007)
Two histologic types of AFP-producing tumors are recognized, both of which can be detected by high AFP serum levels. Hepatoid carcinomas are formed of large polygonal cells with distinct eosinophilic cytoplasm. Bile and PAS-positive and diastase-resistant intracytoplasmic eosinophilic globules can be observed. The lesions are rarely pure and frequently are intermixed with typical adenocarcinomas. A second type of AFP-producing tissue is a well-differentiated tubular or papillary adenocarcinoma with clear cytoplasm (clear types). (Advances in surgical patholology gastric cancer, 2011)
Histological features: 1) HCC-like lesions(trabecular, sinusoid vascular channels) : usually grow in a nodular and expansive fashion. 2) Twelve out of 59 cases showed only hepatoid architecture; most also showed a glandular component. 3) Transforms into glandular apperance with mucus production. 4) IHC: AFP, other serum liver-specific proteins (albumin, transferrin, PIVKA-II..)
À§¾Ï °£ÀüÀÌ È¤Àº °£¾Ï À§ÀüÀÌ È¤Àº double primary¸¦ ±¸ºÐÇϱ⠾î·Á¿î Áõ·Êµµ ÀÖ½À´Ï´Ù. °£¾Ï À§ÇèÀÎÀÚ°¡ ¾ø´Ù´Â Á¡, ¿µ»ó ¼Ò°ß µîÀ» Á¾ÇÕÇÏ¿© À§¾Ï °£ÀüÀÌ °¡´É¼ºÀÌ ³ôÀº °ÍÀ¸·Î ÀáÁ¤ ÀÓ»ó Áø´ÜÇÏ¿´´ø Áõ·Ê¸¦ ¼Ò°³ÇÕ´Ï´Ù. ³Ê¹« ÁøÇàµÈ »óÅ¿´À¸¹Ç·Î best supportive care¸¦ ÇÏ¿´½À´Ï´Ù.
À§Á¶Á÷°Ë»ç. Tubular adenocarcinoma, poorly differentiated with focal mucin production and hepatoid feature (AFP +)
alpha-fetoprotein immunohistochemistry for stomach biopsy
Glypican-3 immunohistochemistry for stomach biopsy
°£Á¶Á÷°Ë»ç. Carcinoma with hepatoid differentiation. Differential diagnosis (1) metastatic hepatoid adenocarcinoma, (2) hepatocellular carcinoma, Edmonson grade 3
[Cases]
HCC·Î Ä¡·á¹Þ°í ÃÖ±Ù±îÁö Àç¹ßÀÇ Áõ°Å°¡ ¾ø´Â ȯÀÚÀÇ Ç÷¾×°Ë»ç¿¡¼ alpha-FPÀÌ Áõ°¡ÇÏ¿© Áø´ÜÇÑ hepatoid adenocarcinomaÀÔ´Ï´Ù. HCCÀÇ stomach metastasis¿Í °¨º°ÀÌ ÇÊ¿äÇÏÁö¸¸ ¼ö³â°£ °£¾ÏÀÇ Àç¹ßÀÌ ¾ø¾ú´ø Á¡°ú ³»½Ã°æ À°¾È¼Ò°ß¿¡¼ metastatic disease º¸´Ù ¿ø¹ß¼º À§¾ÏÀÇ Æ¯Â¡À» º¸ÀÌ´Â Á¡ ¹× adenocarcinomaÀÇ component°¡ ÀÖ¾ú´ø Á¡À» °í·ÁÇÏ¿© primary gastric hepatoid adenocarcinoma·Î Áø´ÜÇÏ¿´°í ¼ö¼úÀ» ±ÇÇÏ¿´½À´Ï´Ù. À§¼±¾Ï¿¡ hepatoid differentiationÀ» º¸ÀÌ´Â ºÎºÐÀÌ ¾ó¸¶³ª Æ÷ÇԵǾî¾ß hepatoid adenocarcinoma·Î Áø´ÜÇÒ ¼ö Àִ°¡¿¡ ´ëÇÑ ±âÁØÀº ¾ø½À´Ï´Ù. »ç½Ç ÀϺκи¸ hepatoid differentiationÀ» º¸ÀÌ´Â À§¼±¾ÏÀº ÀûÁö ¾Ê½À´Ï´Ù.
Hepatoid adenocarcinoma in F/55
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