Journal of Pathology and Translational Medicine

Alpha-Fetoprotein-Producing Carcinoma of the Gallbladder.: Young Ha Oh, Haeng Ji Kang, Hyoung Guen Lee, Eun Kyung Hong, Yong Il Kim, Jung Dal Lee; Korean J Pathol. 1996;30(5):453-456.

Abstract PDF: Alpha-fetoprotein (AFP) is a well-known tumor marker for hepatocellular carcinoma, hepatoblastoma, and yolk sac tumors. There are several studies on AFP-producing tumors that arose from the gastrointestinal tract, pancreas, lung, kidney, and urachal tract. AFP-producing carcinoma of the gallbladder is extremely rare. We report a case of AFP-producing carcinoma of the gallbladder without liver involvement in a 58-year-old man with a gallstone, on which clinical, morphologic, and immunohistochemical studies were performed.

Alpha-Fetoprotein Producing Sertoli-Leydig Cell Tumor of the Ovary: A Case Report.: Kee Taek Jang, Hye Rim Park, Duck Hwan Kim, Chang Mo Kim, Woo Seok Sohn, Hyung Sik Shin; Korean J Pathol. 2002;36(2):128-131.

Abstract PDF: A 26-year-old woman had an ovarian Sertoli-Leydig cell tumor (SLCT) associated with an elevated level of serum alpha-fetoprotein (AFP). The tumor had a heterologous element of intestinal-type mucinous epithelium, retiform and intermediately differentiated tubules of the Sertoli cells, and AFP-producing Leydig cells. AFP was demonstrated within the Leydig cells by an immunohistochemical technique. After surgery, the serum AFP level of the patient fell to the normal range. The present case is the first documented case of AFP producing a SLCT of the ovary reported in Korea.

Pure Immature Teratoma with Increase of Serum alpha-fetoprotein: A Case Report.: Bohng Hee Kim; Korean J Pathol. 2007;41(1):63-65.

Abstract PDF: In the immature teratoma with increased serum alpha-fetoprotein (AFP), a complete pathologic examination is especially required because coexistence with other germ cell tumors is associated with a poor prognosis. If the case is proved to be a pure immature teratoma in spite of a thorough examination, the source of AFP should be found as an AFP-producing pure immature teratoma is not associated with a poor prognosis. In this case of a grade III-immature teratoma in an ovary of a 12-year old girl, serum AFP was increased. On pathologic examination, there was no evidence of a yolk sac tumor or embryonal carcinoma. On an AFP immunohistochemical stain, immature liver tissue, digestive and respiratory epitheliums were positive.

Immunohistochemical Profile of Sclerosing Hepatic Carcinoma.: Chan Il Park, Young Nyun Park; Korean J Pathol. 1994;28(6):636-642.

Abstract PDF: Sclerosing hepatic carcinoma (SHC) is composed of slender cords or small nests of tumor cells with peripheral palisading, and abundant intervening sclerosis. The tumor seems to have the histologic features of both hepatocellular carcinoma (HCC) and cholangiocarcinoma. To evaluate the phenotypic expression of SHC and to investigate its cellular origin, immunohistochemical studies on three cases of SHC were performed. In all cases, the tumor cells showed positive staining for cytokeratins AE1, AE3 and 19, carcinoembryonic antigen (CEA) and epithelial membrane antigen (EMA). The expressions of cytokeratins AE1 and 19 were stronger in the palisading cells than the interior of the cords and nests. Conversely, CEA and EMA were expressed mainly in the inner portion. Alpha-fetoprotein was expressed in only one case, mainly in the palisading cells. In summary, SHC has the histological as well as the immunohistochemical profiles intermediate between HCC and cholangiocarcinoma, and the immunohistochemical profile suggests that SHC arises from primitive hepatoblast with a tendency of differentiation to the bile duct epithelium.

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