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Fig. 2 | BMC Gastroenterology

Fig. 2

From: Characteristics of hepatic solitary necrotic nodules on contrast-enhanced ultrasonography

Fig. 2

Images in a 50–60-year-old sex "1" with a history of hepatocellular carcinoma 3 years after surgery. a There was a hypo-echoic lesion in segment 4 of the liver with a size of 3.0 cm × 2.5 cm. Normal hepatic blood vessels could be seen around the lesions but no obvious blood flow signal was detected. b In arterial phase (timer, 00: 13), the lesions showed obvious thin peripheral rim-like enhancement, and the thickness of the enhanced ring was 0.36 cm; this demonstrated iso-enhancement in the portal phase (timer, 01: 29) and delayed phase (timer, 04:10). There was no contrast agent filling in the interior of the lesions. c Enhanced computed tomography showed no obvious enhancement in the lesions but enhancement in the boundary of the lesion. d Necrotic tissue of the surrounding liver tissue and focal inflammatory cell infiltration could be seen (hematoxylin and eosin, × 100)

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