原发性肝脏肿瘤中,如果有黏液产生被认为是向胆道分化最直接的证据。然而,作者观察到在良性和恶性的肝脏肿瘤中,均可有丰富的细胞外黏液产生,而这些肿瘤仅有向肝细胞分化的依据。为进一步描述这种不同寻常的发现,作者发现9例类似的病例并对其进行进一步的研究,其中4例为 Primary liver tumors, if there is mucus production is considered to be the most direct evidence of biliary differentiation. However, the authors observed that in both benign and malignant liver tumors, extracellular mucus production is abundant, and these tumors only provide evidence of hepatocyte differentiation. To further illustrate this unusual finding, the authors found 9 similar cases and studied them further, of which 4 were