Malignant transformation of biliary adenofibroma combined with benign lymphadenopathy mimicking advanced liver carcinoma: A case report

Figure 4 Microscopic pathology of surgical specimens. A and B: H & E staining of hepatic lesion, (A) H & E × 100 (B) H & E × 200. The malignant component of a tumor consists of deformed fused glandular ducts that form a sieve, and cord-like structures. The neoplastic cells are of medium size with well-defined nucleoli, and most of the cytoplasm is pale, slightly acidophilic or vacuolated; C and D: Immunohistochemical staining of IgG4 and HHV8 in mediastinal lymph node (× 100). Bar = 100 μm.