Echinococcosis: a Challenge for Liver Sonography

Kratzer, Wolfgang; Weimer, Henriette; Schmidberger, Julian

doi:10.1055/a-1694-5552

Cited by 15 publications

(21 citation statements)

References 22 publications

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“…AE and CE are two completely different diseases [11]. There are signi cant differences between CE and AE in the morphology, epidemiology, histopathology, clinical course, clinical management and prognosis.…”

Section: Discussionmentioning

confidence: 99%

Can contrast-enhanced ultrasound differentiate the subtype of hepatic echinococcosis: cystic echinococcosis or alveolar echinococcosis?

Zhang

Suolang

Ren

et al. 2023

Preprint

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Background Hepatic echinococcosis (HE) is a zoonotic disease caused by Echinococcus, and Echinococcus granulosus and Echinococcus multilocularis are the most common, causing cystic echinococcosis (CE) and alveolar echinococcosis (AE) respectively. Contrast-enhanced ultrasound (CEUS) is a new imaging technique which has been recommended for identifying focal lesions in the liver. However, the effect of CEUS on the differentiation of hepatic echinococcosis subtype remains unclear. Methods Twenty-five patients with 46 HE lesions confirmed by histopathology in our Hospital from December 2019 to May 2022 were reviewed by conventional ultrasound (CUS) and CEUS examinations respectively. The images and clips of the lesions by CUS and CEUS were reviewed retrospectively. The lesions by CUS were evaluated including the location, size, morphology, margin, internal echogenicity and the internal Dopper’s signal. The lesions by CEUS were evaluated including the enhancement degree, enhancement pattern and enhancing boundary in different phases. The diagnoses of lesions by CUS or CEUS were recorded respectively. By taking the histopathology as the gold standard, the paired X2 test was performed with statistical software (SPSS, Inc., Chicago, IL) and the results of differentiation of the subtype of HE by CUS and CEUS were statistically analyzed. Results A total of 46 lesions were involved in 25 patients, including 10 males (40.0%) and 15 females (60.0%) with aged 15 to 55 (42.9 ± 10.3) years. By histopathology, 9 patients with 24 lesions were diagnosed as CE and 16 patients with 22 lesions were diagnosed as AE. Among the 46 lesions of HE, compared with histopathological examination, the accuracy rate was 65.2% and 91.3% in CUS and CEUS findings respectively. Among the 24 CE lesions, 13 lesions were correctly differentiated by CUS, while 23 by CEUS. The difference between CUS and CEUS was statistically significant (Chi-square test, X2 = 8.10, df = 23, P < 0.005). Among the total 46 HE lesions, 30 lesions were correctly differentiated by CUS, while 42 by CEUS. The difference between CUS and CEUS was statistically significant (Chi-square test, X2 = 10.08, df = 45, P < 0.005). Conclusions CEUS is a more valid technique that can differentiate the subtype of HE from CE or AE than CUS. It could be a reliable tool in the differentiation of HE.

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Section: Discussionmentioning

confidence: 99%

Can contrast-enhanced ultrasound differentiate the subtype of hepatic echinococcosis: cystic echinococcosis or alveolar echinococcosis?

Zhang

Suolang

Ren

et al. 2023

Preprint

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“…Even though according to the WHO Informal Working Group on Echinococcosis (WHO-IGWE), ultrasound is the preferred tool for screening and diagnosing hepatic CE ( 4 ) , pulmonary manifestation is not always detectable by US because of known physical limitations of lung US. Nevertheless, it was shown that B-mode US was able to detect and diagnose pulmonary CE with high specificity by using the wall sign ( 2 ) .…”

Section: Discussionmentioning

confidence: 99%

Pulmonary cystic echinococcosis in contrast enhanced ultrasound – a case report

Findeisen¹,

Westhoff²,

Trenker³

et al. 2023

J Ultrason

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Aim of the study: Pulmonary cystic echinococcosis is a parasitic infection transmitted by dogs and occurring in livestock-raising areas. It is included among the neglected tropical diseases, according to the World Health Organization. Imaging plays a pivotal role in the diagnosis of this disease. While cross-sectional imaging modalities such as computed tomography and magnetic resonance imaging are preferred, lung ultrasound may be another feasible technique. Case description: We report a case of pulmonary cystic echinococcosis in a 26-year-old woman who was examined by contrast-enhanced ultrasound, which showed marked annular enhancement around the hydatid cyst, mimicking a superinfected cyst. Conclusions: Contrast-enhanced ultrasound examination in pulmonary cystic echinococcosis should be studied in a larger population to determine the value of additional contrast administration. In the present case report, no superinfected echinococcal cyst was seen despite marked annular contrast enhancement.

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“…Darüber hinaus zeigt es eine zentripetale Kontrastmittelanflutung mit komplettem oder inkomplettem Irisblendenphänomen sowie eine hyperechogene Darstellung in der Spätphase; dies ist bei hämangiomartigen AE-Läsionen nicht nachweisbar ( Abb. 8 ) 3 .…”

Section: Fuchsbandwurmerkrankungunclassified

“…Hierbei stellen komplizierte Zysten und nicht typische Raumforderungen die Untersucher vor die Frage: Handelt es sich um eine atypische benigne Läsion oder eine bisher nicht bekannte primär maligne oder metastasensuspekte Läsion [2]? Die sonografischen Befunde bei der Fuchsbandwurmerkrankung (alveoläre Echinokokkose, AE) und der Hundebandwurmerkrankung (zystische Echinokokkose, CE) sind komplex und können erhebliche differenzialdiagnostische Probleme bereiten [3].…”

Section: Introductionunclassified