PMC10105509_01
Computed tomography scans showing a 2.2x3.0x2.8-cm well-defined hypodense lesion with arterial enhancing lesion and faint wash-out in the delayed phase at segment IVa of the left hepatic lobe. Plain (a), arterial phase (b), portovenous phase (c), and delayed phase (d)
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F1
A 2.2x3.0x2.8-cm well-defined hypodense lesion was observed with an arterial enhancement and a faint wash-out in the delayed phase at segment IVa of the left hepatic lobe (Figure 1).
Pathological examination of the hepatic lesion. (a) Revealed brownish pigment in hepatocytes (hematoxylin and eosin staining, bar = 100 mum). At higher power, the granular brown pigment was present within hepatocytes, and Kupffer cells (b), and hematopoietic tissue proliferated in the sinusoids, comprising erythroid and myeloid precursors (c) (bar = 50 mum)
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F2
Hematopoietic tissue proliferated in the sinusoids, comprising erythroid and myeloid precursors compatible with features of hepatic extramedullary hematopoiesis without any evidence of a hepatic tumor (Figure 2).