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Alpha-Fetoprotein-Producing Hepatoid Adenocarcinoma Originating in the Lung-A Case Report

原發性肺臟內肝樣腺癌-病例報告

摘要


肝樣腺癌是一種罕見的肝外惡性腫瘤,而在病理組織學上的表現與原發性肝細胞癌十分相似。大部份的肝樣腺癌會產生極高量的甲型胎兒蛋白。到目前為止,在現有的文獻上,只有正式提出十一位原發性肺臟內肝樣腺癌。我們在此報告一個病例:一位四十四歲的男性,被意外發現有一個肺部腫瘤與合併血清中有大量的甲型胎兒蛋白,並在經由電腦斷層掃描指引下所取得的切片,經病理組織學的檢查,證實是肝樣腺癌。而他的肝臟的檢查並沒有發現肝癌的證據或是其他的異常。在經過化學治療與放射線治療後,病人血清中的甲型胎兒蛋白有明顯的下降。

並列摘要


Hepatoid adenocarcinoma (HAC) is a rare extrahepatic malignant disease with a histopathologic pattern similar to that of hepatocellular carcinoma (HCC). Most hepatoid carcinomas generate a high level of alpha-fetoprotein (AFP). To date, only 11 cases of HAC in the lung have been reported in the literature. Herein, we report a 44-year-old man with an incidentally-found lung mass accompanied by an elevated serum level of AFP as high as 82,714 ng/mL; the mass was confirmed to be HAC on histopathologic examination via a specimen obtained from percutaneous computed tomography-guided biopsy. The CT scan and ultrasonography of the abdomen revealed no evidence of hepatoma or other intraabdominal abnormalities. The follow-up serum AFP level declined to 28,461 ng/mL after a cycle of chemotherapy and radiotherapy.

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