ABSTRACT
Objective To investigate the imaging features of dysplastic nodules with a focus of hepatocellular carcinoma ( DN-HCC ) on contrast-enhanced ultrasound ( CEUS ) and to improve the diagnostic accuracy . Methods The clinical data of 60 patients and CEUS imaging of 62 hepatic nodules [DN-HCCs , n =54 ;dysplastic nodules (DN) , n =8] pathologically proved were reviewed retrospectively . According to Contrast Enhanced Ultrasound Liver Imaging Reporting and Data System (CEUS LI-RADS) , the lesions were categorized . Results Significantly different CEUS patterns between DN-HCCs and DNs were observed ( P < 0 .05) . During the arterial phase ,54 DN-HCC lesions showed various enhancement patterns [ hypervascular ,59 .3％ ( 32/54 ) ;nodule-in-nodule ,9 .3％ ( 5/54 ) ;isovascular ,13 .0％ ( 7/54 ) and hypovascular ,18 .5％ (10/54)] . Of the 54 DN-HCC lesions ,44 .4％ (24/54) showed washout during the late phase .Of the 8 DN lesions ,62 .5％ (5/8) showed iso-enhancement during the arterial phase ,25％ (2/8) showed hypo-enhancement ,and 12 .5％ (1/8) showed hyper-enhancement . No DN lesion showed washout during the late phase .According to CEUS LI-RADS (LR) algorithm ,27 .8％ (15/54) DN-HCCs were LR-5 ,46 .3％ (25/54) DN-HCCs were LR-4 ,25 .9％ (14/54) DN-HCCs and 100％ (8/8) DNs were LR-3 . Regarding hyper-enhancement ( including local hyper-enhancement ) during the arterial phase or hypo-enhancement (including local hypo-enhancement) during the late phase as the diagnostic standard of DN-HCC , the diagnostic sensitivity , specificity and accuracy value were 83 .3％ , 87 .5％ and 83 .9％ , respectively . Conclusions The imaging features of hyper-enhancement during the arterial phase or hypo-enhancement during the late phase on CEUS are useful to diagnose DN-HCCs .
ABSTRACT
Continuamos con la revisión de los tumores hepáticos. Nos referiremos a los tumores hepáticos primarios malignos más frecuentes. Tal como lo mencionamos anteriormente, los tumores malignos hepatobiliares son un espectro de tumores invasivos que reciben su nombre dependiendo de su célula de origen. De acuerdo con la Agencia Internacional para el Estudio del Cáncer (IARC), los tumores hepáticos malignos constituyen la segunda causa de muerte en el mundo, con aproximadamente 745 000 muertes/año (1). Al igual que en el artículo anterior, el objetivo es identificar aquellos aspectos más relevantes de estas neoplasias, en especial los hallazgos morfológicos que generan mayor problema diagnóstico en la utilidad de los estudios de inmunohistoquímica y sus diagnósticos diferenciales. La primera parte de esta revisión se centrará en el hepatocarcinoma, el más frecuente de los tumores hepáticos epiteliales malignos, algunas de sus variantes y sus lesiones precursoras. También en el controvertido papel de la biopsia hepática para su diagnóstico.
We continue with our review of liver tumors in which we will refer to the most common primary malignant liver tumors. As mentioned previously, hepatobiliary malignancies are a spectrum of invasive tumors whose names depend on their origins. According to the International Agency for Research on Cancer (IARC), malignant liver tumors are the second leading cause of death worldwide with approximately 745,000 deaths/year. (1) As in the previous article, the aim here will be to identify the most relevant aspects of these neoplasms. In particular we will look at morphological findings that generate major diagnostic problems and at the usefulness of immunohistochemical studies and their differential diagnoses. Hepatic carcinoma, the most frequent malignant epithelial tumor of the liver is the focus of the first part of this review. We will look at some of its variants and its precursor lesions, and at the controversial role of liver biopsies for diagnosis.
Subject(s)
Humans , Carcinoma, Hepatocellular , Immunohistochemistry , Liver NeoplasmsABSTRACT
No abstract available.