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Updated: Jun 23, 2026
Isolation of Neonatal Extrahepatic Cholangiocytes
Published on: June 5, 2014
Ectopic β-hCG-Expressing Hepatic Neoplasm with Cutaneous Metastasis in a Young Postpartum Woman: A Case Report and
Yameng Zheng1, Meiqin Yang2, Wen Xu1
1Department of Ultrasound, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
This case report describes a rare presentation of intrahepatic cholangiocarcinoma (ICC) in a 33-year-old postpartum woman, with extensive systemic and cutaneous metastases as the initial clinical manifestations. She presented with a palpable mass on her back and was subsequently found to have hepatic masses accompanied by elevated serum carbohydrate antigen (CA) 19-9 and β-human chorionic gonadotropin (β-hCG). Subsequent imaging and histopathological evaluation confirmed a poorly differentiated ICC with atypical trabecular, nested, and sheet-like growth patterns, without evidence of trophoblastic differentiation. Immunohistochemical analysis revealed a Cytokeratin (CK) 7-negative/CK19-positive immunophenotype and moderate hCG expression (++). In postpartum patients with unexplained β-hCG elevation unrelated to pregnancy, ectopic β-hCG-secreting tumors, such as ICC, should be considered in the differential diagnosis after exclusion of trophoblastic and germ cell neoplasms, particularly when accompanied by elevated carbohydrate antigen 19-9 levels.
This case report describes a rare presentation of intrahepatic cholangiocarcinoma (ICC) in a 33-year-old postpartum woman, with extensive systemic and cutaneous metastases as the initial clinical manifestations. She presented with a palpable mass on her back and was subsequently found to have hepatic masses accompanied by elevated serum carbohydrate antigen (CA) 19-9 and β-human chorionic gonadotropin (β-hCG). Subsequent imaging and histopathological evaluation confirmed a poorly differentiated ICC with atypical trabecular, nested, and sheet-like growth patterns, without evidence of trophoblastic differentiation. Immunohistochemical analysis revealed a Cytokeratin (CK) 7-negative/CK19-positive immunophenotype and moderate hCG expression (++). In postpartum patients with unexplained β-hCG elevation unrelated to pregnancy, ectopic β-hCG-secreting tumors, such as ICC, should be considered in the differential diagnosis after exclusion of trophoblastic and germ cell neoplasms, particularly when accompanied by elevated carbohydrate antigen 19-9 levels.