Primary hepatic neuroendocrine tumor with multiple liver metastases: A case report with review of the literature

Figure 2 Magnetic resonance images. A: T2-weighted axial image; and B: diffusion image (b factor = 800) demonstrated well-circumscribed masses of high signal intensity as well as lobulated, irregular masses with low signal intensity; C: Precontrast T1-weighted image showed well-circumscribed, heterogeneous, and hypointense lesions. On enhanced magnetic resonance images, the solid portions of these tumors were significantly enhanced in the early arterial phase; D: irregular to no enhancement was present in the central or foci embellishment of the lesions; E: The enhancement continued in the portal venous phase; F: A definite defect was present in the 20-min delayed hepatobiliary phase find a well-rim arc-shaped artery vessels accompanied on the lesion side on the coronal image; G: Digital subtraction angiography showed multiple hypervascular tumor-staining lesions with sharp edges in the arterial phase.