By Tommaso Vincenzo Bartolotta, Adele Taibbi, Massimo Midiri
This e-book bargains an image-based, complete quickly reference advisor that would help in the translation of contrast-enhanced ultrasound (CEUS) examinations of the liver in day-by-day perform. It describes and depicts commonplace and odd habit of either universal and not more often saw focal liver lesions. for every kind of lesion, the findings on pre- and post-contrast photographs are awarded and key features are highlighted. person chapters additionally specialize in the overview of reaction to locoregional and systemic therapy and the impression of ecu directions on CEUS. The Atlas of Contrast-Enhanced Sonography of Focal Liver Lesions will function a useful hands-on software for practitioners who have to diagnose liver lesions utilizing CEUS within the significant scientific settings: oncology sufferers, cirrhotic sufferers, and sufferers with incidental focal liver lesions.
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Extra resources for Atlas of Contrast-enhanced Sonography of Focal Liver Lesions
B) At pulsed-Doppler evaluation, some arterial vessel is evident within the mass. 5 Hepatocellular Adenoma c d Fig. 18 (continued) 49 50 e Fig. 6 Abscesses The liver abscesses are caused by pyogenic (85 %), fungal (9 %), or amebic (6 %) agents and can present as multiple lesions up to 50 % of cases, with variable size between few millimeters and several centimeters. Classic pyogenic abscesses show rounded or oval morphology, with 51 a thick hyperechoic wall, partially fluid content, with septa and sometimes gas and fluid levels in the context.
FNH represents a proliferative response of hepatocytes secondary to a vascular malformation . In fact, the lesion is composed of normal hepatocytes and Kupffer cells separated by fibrous septa with bile ducts and inflammatory cells inside the septa in the absence of classic lobular architecture . Differentiation of FNH from other FLLs is of clinical relevance since surgery is not recommended for asymptomatic patients . Baseline US is not specific for FNH diagnosis because of the absence of specific features.
11 Focal nodular hyperplasia in a 28-year-old woman. 7-cm slightly hyperechoic lesion located in segment V (calipers). (b) CEUS depicts the spoke-wheel sign in the early arterial phase (arrow). (c) In the late arterial phase, the lesion shows a clear-cut and homogeneous contrast enhancement (arrow) (d) The lesion is isovascular with respect to the surrounding liver parenchyma in the late phase 2 30 c d Fig. 4 Focal Nodular Hyperplasia 31 a b Fig. 12 Focal nodular hyperplasia in a 35-year-old man.