PMC8249138_01
Contrast-enhanced computed tomography (CT) of the chest showing a lung mass measuring 4.4 x 4.0 x 4.0 cm.
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Contrast-enhanced computed tomography (CT) of the chest and abdomen confirmed the liver lesions and multiple lesions in the pancreas and lungs, with no significant abdominal or thoracic lymphadenopathy (Figures 1 and 2 ).
CT of the abdomen showing multiple irregular lesions in the liver, with the largest measuring 6.0 x 6.0 cm (white arrow).
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Contrast-enhanced computed tomography (CT) of the chest and abdomen confirmed the liver lesions and multiple lesions in the pancreas and lungs, with no significant abdominal or thoracic lymphadenopathy (Figures 1 and 2 ).
Haematoxylin-and-eosin- (H&E-) stained section of the liver showing a characteristic nesting pattern ("Zellballen") of cells (400x magnification).
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The liver section showed a nesting (Zellballen) pattern of cells within a prominent vascular network (Figure 3).
Photomicrograph (100x) of the liver showing strong diffuse staining of tumor cells with a chromogranin.
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Immunohistochemistry stained positive for chromogranin (Figure 4) and synaptophysin and negative for cytokeratin 7 and 20.