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Fig. 1 | Surgical Case Reports

Fig. 1

From: Unclassified hepatocellular adenoma with histological brown pigment deposition and serum PIVKA-II level elevation: a case report

Fig. 1

Computed tomography (CT) imaging. a Plain CT showed a slight low-density tumor (diameter, 80 mm) in segments S4 + S5. b Contrast-enhanced CT of the arterial phase showed a hypervascular mass. c Portal phase: the contrasting effect continued. d Delayed phase: the tumor looked similar to a normal liver. e Coronal section in the portal phase: the irregular non-contrasting area was detected inside of the tumor and accompanied by calcification, cystic parts, fatty deposition, and suspected partial hemorrhagic necrosis

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