Fig. 2
From: Multiple paragangliomas of head and neck associated with hepatic paraganglioma: a case report
Radiologic, histologic and immunophenotypic features of hepatic PGs in the patient. a Late arterial phase image showing the slightly enhanced mass. b T1-weighted image exhibiting low signal intensity of the mass compared to the liver tissue. c T2 weighted image showing heterogeneous high signal intensity of the mass compared to the liver tissue. d, e Diffusion weighted image demonstrating high signal intensity of the solid component in the mass (d), whereas low signal intensity was seen on the image of ADC (e). f The contrast-enhanced MRI shows that the mass was heterogeneously and dramatically enhanced. g DSA showing that the hepatic mass was highly vascularized. h, i Haematoxylin and eosin staining of the hepatic PG specimen showing the nested (Zellballen) pattern of neoplastic cells and their neuroendocrine appearance (h: magnification, × 200; i: magnification, × 400). j Immunohistochemical staining for expression of synaptophysin (magnification, × 200)