Journal of Pathology and Translational Medicine

Young Joo Lee

3 Articles

Adrenal Cortical Adenoma Developed in Adrenohepatic Fusion, a Mimicry of Hepatocellular Carcinoma: A Case Report.: Sun A Kim, Young Joo Lee, Kyoung Won Kim, Gyungyub Gong; Korean J Pathol. 2011;45(2):196-200.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.2.196

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Adrenohepatic fusion is the union of the liver and adrenal gland with close intermingling of their respective parenchymal cells. Adrenal cortical adenoma arising in adrenohepatic fusion tissue is extremely rare, although adrenohepatic fusion itself is relatively common. Here we report a case of a 59-year-old man with a mass in the right lobe of his liver. The mass showed slight hyperattenuation during arterial phase and hypoattenuation during portal phase on dynamic computed tomography with contrast enhancement. On pathology, the mass consisted of round to polygonal cells with clear microvesicular or eosinophilic cytoplasm, arranged in nests or in a trabecular pattern. The tumor cells were positive for inhibin and melan-A, but negative for Hep Par-1. In the periphery of the mass, adrenohepatic fusion was identified between the liver and adrenal gland, and was simultaneously resected with the mass. We report this rare case, and discuss its clinical implications, especially the differential diagnosis with hepatocellular carcinoma.

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Adrenal cortical adenoma arising in an adreno-hepatic fusion: Case report and literature review of a potential diagnostic pitfall
Adam Stenman, Ivan Shabo, Jan Zedenius, C. Christofer Juhlin
Human Pathology Reports.2022; 29: 300656. CrossRef
Intrahepatic adrenocortical adenoma arising from adrenohepatic fusion mimicking hepatic malignancy
Yong Soo Cho, Jin Woong Kim, Hyun Ju Seon, Ju-Yeon Cho, Jun-Hee Park, Hyung Joong Kim, Yoo Duk Choi, Young Hoe Hur
Medicine.2019; 98(23): e15901. CrossRef
Direct and indirect imaging features of adrenohepatic fusion
Jung Jae Park, Byung Kwan Park, Chan Kyo Kim
Abdominal Radiology.2016; 41(2): 377. CrossRef

Expression of the 14-3-3 sigma Protein and Methylation Status of the 14-3-3 sigma gene in Biliary Neoplasms.: Dong Eun Song, Se Jin Jang, Jung Sun Kim, Sang Soo Lee, Myung Hwan Kim, Seung Gyu Lee, Young Joo Lee, Hae Joung Park, Yhong Hee Shim, Eunsil Yu; Korean J Pathol. 2006;40(1):9-16.

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Abstract PDF: BACKGROUND
The 14-3-3 sigma (sigma) protein has a negative regulatory role in the cell cycle progression of the. Down-regulation or overexpression of the 14-3-3 sigma protein has been reported in various human cancers.
METHODS
Immunohistochemistry for the 14-3-3 sigma protein was performed in non-neoplastic bile duct cells, intraductal papillary neoplasms of the liver (IPNL), mass-forming intrahepatic cholangiocarcinomas (ICC) and non-papillary extrahepatic cholangiocarcinomas (ECC). We investigated the methylation status of the 14-3-3 sigma gene in 45 cases of these 3 tumor groups.
RESULTS
The non-neoplastic bile duct cells demonstrated negative or weakly positive cytoplasmic immunoreactivity for the 14-3-3 sigma protein and no methylation of the 14-3-3 sigma gene. Overexpression as well as negative immunoreactivity associated with hypermethylation of the 14-3-3 sigma protein was observed in 16 (69.6%) of 23 cases of IPNL, in 21 (63.6%) of 33 cases of mass-forming ICC and in 27 (71.1%) of 38 cases of non-papillary ECC. Negative immunoreactivity was increased in the invasive IPNL (4/6, 66.7%), as well as in the poorly differentiated cases of mass-forming ICC (8/12, 66.7%) and the non-papillary ECC (5/8, 62.5%).
CONCLUSIONS
The similar rates for the abnormal expression of the 14-3-3 sigma protein among the three groups of biliary neoplasms indicate its general association with biliary carcinogenesis. Furthermore, the loss of the 14-3-3 sigma protein may be involved in the tumor progression and differentiation in the biliary carcinogenesis.

Splenic Lymphangioma: A Report of Three Cases.: Mi Jung Kim, Kyung Ja Cho, Eun Mi Han, Young Joo Lee; Korean J Pathol. 2002;36(6):416-419.

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Abstract PDF: Splenic lymphangioma is a very rare and benign neoplasm. We report three cases of splenic lymphangiomas found in three women aged 71-years-old, 50-years-old, and 46-years-old. All of the three cases consisted of solitary lesions in the spleen and they were not represented as a part of lymphangiomatosis. Splenectomies were done in all cases and enlarged spleens revealed multicystic masses with variable-sized cysts. Histologically, the cysts were lined by flat endothelial cells and filled with acellular pinkish fluid. The cyst walls mainly consisted of hypocellular fibrous tissue with occasional smooth muscle components. The walls were shared by neighboring cysts, or intervened by interspersed splenic parenchymal components. On immunohistochemical stainings, the lining cells were diffusely positive for CD31 and factor VIII-related antigen (FVIII-RAg), while focally positive for CD34 in all cases.

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