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Background and Objectives: Unstable atherosclerotic plaque in the arteries is one of the main risk factors for cerebral ischemia. Duplex ultrasound is a frequently used diagnostic method, but it has some limitations for microvascularization and neovascularization evaluation. The aim of this review was to evaluate the role of the new multiparametric US method-contrast-enhanced ultrasound (CEUS)-in atherosclerotic plaque instability verification. Materials and Methods: Original studies, reviews, and meta-analyses were included in this article. A total of 53 studies were retrieved; 29 were included in this study. Results: Carotid artery CEUS as a part of the multiparametric ultrasound method shows promising results and provides additional characteristics of soft- and high-risk atherosclerotic plaques; it can be advised in clinical practice for patients with carotid artery soft- and high-risk plaques. However, there are some limitations, such as extensive calcinosis with important acoustic shadows in carotid atherosclerotic plaque neovascularization diagnostics by CEUS. The added value of CEUS in the characterization of atherosclerotic plaque is that it indicates regions with high neovascularization and visualizes ulcerations on plaque surfaces, suggestive of increased instability risk.
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Estenosis Carotídea , Placa Aterosclerótica , Humanos , Placa Aterosclerótica/diagnóstico por imagen , Estenosis Carotídea/diagnóstico por imagen , Medios de Contraste , Arterias Carótidas/diagnóstico por imagen , UltrasonografíaRESUMEN
OBJECTIVES: This study aimed to define patterns of liver injury after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection using multiparametric ultrasound (mpUS) in a variable patient population with differing severities of COVID-19. METHODS: Ninety patients were enrolled into the study: 56 had SARS-CoV-2 3-9 months prior to enrolment; 34 served as a clinically healthy control group. All patients underwent an mpUS evaluation of the liver (elastography, dispersion and attenuation imaging). Seventy-six patients had abdominal magnetic resonance (MR) and noncontrast enhanced thoracic computed tomography (CT) scans performed at the same day. All patients were screened for biochemical markers of liver injury. RESULTS: Liver elasticity, viscosity, and steatosis values were significantly altered in patients after COVID-19, with particularly higher fibrosis scores compared to the control group (P < .001). Increased biochemical markers of liver injury correlated with changes in mpUS (P < .05), but not with findings on CT or MR findings. Seventeen of 34 hospitalized patients had a moderate or severe course of the disease course with more pronounced changes in mpUS. Increased body mass index was found to influence liver injury and correlated with more severe forms of COVID-19 (P < .001). CONCLUSIONS: COVID-19 can cause liver injury observable using mpUS. More severe forms of COVID-19 and patient obesity are related to increased values of liver damage observed. In comparison to MRI and CT, mpUS appears to be more sensitive to involvement of liver parenchyma. Further research is warranted to establish this promising method for evaluating post-COVID-19 liver involvement in the aftermath of the pandemic.
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COVID-19 , COVID-19/complicaciones , Humanos , Hígado/diagnóstico por imagen , Pandemias , SARS-CoV-2 , UltrasonografíaRESUMEN
This first position paper of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) on professional standards presents a common position across the different medical professions within EFSUMB regarding optimal standards for the performing and reporting of ultrasound examinations by any professional ultrasound operator. It describes general aspects of professionality that ensure procedure quality, effectiveness, efficiency, and sustainability in virtually all application fields of medical ultrasound. Recommendations are given related to safety and indication of ultrasound examinations, requirements for examination rooms, structured examination, systematic reporting of results, and management, communication and archiving of ultrasound data. The print version of this article is a short version. The long version is published online.
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Sociedades Médicas , Humanos , Ultrasonografía/métodosRESUMEN
This first position paper of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) on professional standards presents a common position across the different medical professions within EFSUMB regarding optimal standards for the performing and reporting of ultrasound examinations by any professional ultrasound operator. It describes general aspects of professionality that ensure procedure quality, effectiveness, efficiency, and sustainability in virtually all application fields of medical ultrasound. Recommendations are given related to safety and indication of ultrasound examinations, requirements for examination rooms, structured examination, systematic reporting of results, and management, communication and archiving of ultrasound data. The print version of this article is a short version. The long version is published online.
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Sociedades Médicas , Humanos , Ultrasonografía/métodosRESUMEN
Background and Objectives: The aim of the study was to evaluate the predictive value of the ultrasound criterion "non-marked hypoechogenicity" for malignancy and to determine whether classification of these nodules as TIRADS 3 could improve the overall accuracy of consequently adjusted M-TIRADS score. Materials and Methods: A total of 767 patients with 795 thyroid nodules were subject to ultrasonography examination and ultrasound-guided fine needle aspiration biopsy. Nodules were classified by Kwak TIRADS and modified (M-TIRADS) categories 4A, 4B, and 5 according to number of suspicious US features (marked hypoechogenicity, microlobulated or irregular margins, microcalcifications, taller-than-wide shape, metastatic lymph nodes). Non-marked hypoechoic nodules were classified as TIRADS 3. Results: Thyroid nodules were classified as TIRADS 2, 3, 4A, 4B, and 5 in 14.5, 57.5, 14.2, 8.1, and 5.7%, respectively. Only histopathologic results (125 nodules underwent surgery) and highly specific cytology results (Bethesda II, VI) were accepted as a standard of reference, forming a sub-cohort of 562/795 nodules (70.7%). Malignancy was found in 7.7%. Overall, M-TIRADS showed sensitivity/specificity of 93.02/81.31%, and for PPV/NPV, these were 29.2/99.29%, respectively (OR-18.62). Irregular margins showed the highest sensitivity and specificity (75.68/93.74%, respectively). In TIRADS 3 category, 37.2% nodules were isoechoic, 6.6% hyperechoic, and 52.2% hypoechoic (there was no difference of malignancy risk in hypoechoic nodules between M-TIRADS and Kwak systems-0.9 vs. 0.8, respectively). Accuracy of M-TIRADS classification in this cohort was 78.26% vs. 48.11% for Kwak. Conclusions: The non-marked hypoechoic nodule pattern correlated with low risk of malignancy; classification of these nodules as TIRADS 3 significantly improved the predictive value and overall accuracy of the proposed M-TIRADS scoring with malignancy risk increase in TIRADS 4 categories by 20%; and no significant alteration of malignancy risk in TIRADS 3 could contribute to reducing overdiagnosis, obviating the need for FNA.
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Neoplasias de la Tiroides , Nódulo Tiroideo , Humanos , Estudios Retrospectivos , Medición de Riesgo/métodos , Neoplasias de la Tiroides/diagnóstico por imagen , Nódulo Tiroideo/diagnóstico por imagen , Nódulo Tiroideo/patología , Ultrasonografía/métodosRESUMEN
BACKGROUND: Studies on a new coronavirus disease (COVID-19) show the elevation of liver enzymes and liver fibrosis index (FIB-4) independently on pre-existing liver diseases. It points to increased liver fibrogenesis during acute COVID-19 with possible long-term consequences. This study aimed to assess liver fibrosis in COVID-19 patients by serum hyaluronic acid (HA) and FIB-4. METHODS: The study included the acute COVID-19 group (66 patients, 50% females, mean age 58.3 ± 14.6), the post-COVID group (58 patients in 3-6 months after the recovery, 47% females, mean age 41.2 ± 13.4), and a control group (17 people, 47% females, mean age 42.8 ± 11.0). Ultrasound elastography was performed in the post-COVID and control groups. RESULTS: Sixty-five percent of the acute COVID-19 group had increased FIB-4 (> 1.45), and 38% of patients had FIB-4 ≥ 3.25. After matching by demographics, 52% of acute COVID-19 and 5% of the post-COVID group had FIB-4 > 1.45, and 29% and 2% of patients had FIB-4 ≥ 3.25, respectively. Increased serum HA (≥ 75 ng/ml) was observed in 54% of the acute COVID-19 and 15% of the post-COVID group. In the acute COVID-19 group, HA positively correlated with FIB-4, AST, ALT, LDH, IL-6, and ferritin and negatively with blood oxygen saturation. In the post-COVID group, HA did not correlate with FIB-4, but it was positively associated with higher liver stiffness and ALT. CONCLUSION: More than half of acute COVID-19 patients had increased serum HA and FIB-4 related to liver function tests, inflammatory markers, and blood oxygen saturation. It provides evidence for the induction of liver fibrosis by multiple factors during acute COVID-19. Findings also indicate possible liver fibrosis in about 5% of the post-COVID group.
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COVID-19 , Diagnóstico por Imagen de Elasticidad , Adulto , Anciano , Aspartato Aminotransferasas , Femenino , Humanos , Cirrosis Hepática , Masculino , Persona de Mediana Edad , SARS-CoV-2RESUMEN
PURPOSE: To evaluate the diagnostic performance of strain elastography (SE) and 2âD shear wave elastography (SWE) and SE/SWE combination in comparison with conventional multiparametric ultrasound (US) with respect to improving BI-RADS classification results and differentiating benign and malignant breast lesions using a qualitative and quantitative assessment. MATERIALS AND METHODS: In this prospective study, 130 histologically proven breast masses were evaluated with baseline US, color Doppler ultrasound (CDUS), SE and SWE (Toshiba Aplio 500 with a 7-15âMHz wide-band linear transducer). Each lesion was classified according to the BIRADS lexicon by evaluating the size, the B-mode and color Doppler features, the SE qualitative (point color scale) and SE semi-quantitative (strain ratio) methods, and quantitative SWE. Histological results were compared with BIRADS, strain ratio (SR) and shear wave elastography (SWE) all performed by one investigator blinded to the clinical examination and mammographic results at the time of the US examination. The area under the ROC curve (AUC) was calculated to evaluate the diagnostic performance of B-mode US, SE, SWE, and their combination. RESULTS: Histological examination revealed 47 benign and 83 malignant breast lesions. The accuracy of SR was statistically significantly higher than SWE (sensitivity, specificity and AUC were 89.2â%, 76.6â% and 0.83 for SR and 72.3â%, 66.0â% and 0.69 for SWE, respectively, pâ=â0.003) but not higher than B-mode US (B-mode US sensitivity, specificity and AUC were 85.5â%, 78.8â%, 0.821, respectively, pâ=â1.000). CONCLUSION: Our experience suggests that conventional US in combination with both SE and SWE is a valid tool that can be useful in the clinical setting, can improve BIRADS category assessment and may help in the differentiation of benign from malignant breast lesions, with SE having higher accuracy than SWE.
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Neoplasias de la Mama , Diagnóstico por Imagen de Elasticidad , Mama/diagnóstico por imagen , Neoplasias de la Mama/diagnóstico por imagen , Diagnóstico Diferencial , Femenino , Humanos , Estudios Prospectivos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Transductores , Ultrasonografía , Ultrasonografía MamariaRESUMEN
Background and Objectives: preoperative differentiation of enlarged parathyroid glands may be challenging in conventional B-mode ultrasound. The aim of our study was to analyse qualitative and quantitative characteristics of parathyroid gland lesions, using multiparametric ultrasound protocol-B-mode, Colour Doppler (CD), and contrast-enhanced ultrasound (CEUS)-and to evaluate correlation with morphology in patients with hyperparathyroidism (HPT). Materials and Methods: consecutive 75 patients with 88 parathyroid lesions and biochemically confirmed HPT prior to parathyroidectomy were enrolled in the prospective study. B-mode ultrasound, CD, and CEUS were performed with the subsequent qualitative and quantitative evaluation of acquired data. We used 1 mL or 2 mL of intravenous ultrasound contrast agent during the CEUS examination. Correlation with post-surgical morphology was evaluated. Results: seventy parathyroid adenomas were hypoechoic and well contoured with increased central echogenicity (44.3%), peripheral-central vascularization (47%), and polar feeding vessel (100%). Twelve hyperplasias presented with similar ultrasound appearance and were smaller in volume (p = 0.036). Hyperplasias had a tendency for homogenous, marked intense enhancement vs. peripherally enhanced adenomas with central wash-out in CEUS after quantitative analysis. No significant difference was observed in contrasting dynamics, regardless of contrast media volume use (1 mL vs. 2 mL). We achieved 90.9% sensitivity and 72.7% specificity, 93% positive predictive value (PPV), 87.3% negative predictive value (NPV), and 87.3% accuracy in the differentiation of parathyroid lesions prior to post-processing. In a quantitative lesion analysis, our sensitivity increased up to 98%, specificity 80%, PPV 98%, and NPV 80% with an accuracy of 96.4%. Conclusions: CEUS of parathyroid lesions shows potential in the differentiation of adenoma from hyperplasia, regardless of the amount of contrast media injected. The quantitative analysis improved the sensitivity and specificity of differentiation between parathyroid lesions. Hyperplasia was characterized by homogeneous enhancement, fast uptake, and homogeneous wash-out appearance; adenoma-by peripheral uptake, central wash-out, and reduced hemodynamics. The use of CEUS quantification methods are advised to improve the ultrasound diagnostic role in suspected parathyroid lesions.
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Medios de Contraste , Glándulas Paratiroides , Humanos , Glándulas Paratiroides/diagnóstico por imagen , Glándulas Paratiroides/cirugía , Estudios Prospectivos , Sensibilidad y Especificidad , UltrasonografíaRESUMEN
BACKGROUND: The present study was undertaken to systematically review the literature on the reliability of using contrast-enhanced ultrasound (CEUS) to assess thyroid nodules. To avoid the potential bias in studies using a cytological standard of reference, here we aimed to meta-analyze data from studies adopting histological diagnosis as the gold standard. METHODS: A comprehensive literature exploration of PubMed and Scopus was conducted. The search was updated until June 2018 and references of the retrieved articles screened. Only original articles reporting the histological follow-up of nodules previously undergone CEUS evaluation were eligible for inclusion. Pooled sensitivity, specificity, PPV, and NPV of CEUS were calculated by DerSimonian and Laird method (random-effects model). RESULTS: The literature search retrieved 1885 articles, and 14 were included for the study. There were Chinese, Italian, German, and Austrian authors. All studies used SonoVue. The overall number of reported nodules was 1515, of which 775 were classified as positive at CEUS and 740 as negative. Pooled sensitivity, specificity, PPV, and NPV of CEUS were 85% (95% CI 83-88), 82% (95% CI 77-87), 83% (95% CI 77-88), and 85% (95% CI 81-88), respectively. Moderate inconsistency was present for specificity and PPV. There was publication bias for sensitivity and NPV. CONCLUSIONS: CEUS reaches good performance in discriminating between malignant and benign thyroid lesions.
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Nódulo Tiroideo/diagnóstico por imagen , Ultrasonografía/métodos , Medios de Contraste , HumanosRESUMEN
BACKGROUND: Bridging treatment with intravenous thrombolysis (IVT) before endovascular thrombectomy (EVT) in acute ischemic stroke is applied under the assumption of benefits for patients with large vessel occlusion (LVO). However, the benefit of this additional step has not yet been proven. PURPOSE: To compare procedural parameters (procedural time, number of attempts), complications, and clinical outcome in patients receiving EVT vs. patients with bridging treatment. MATERIAL AND METHODS: In this prospective study all patients had acute anterior cerebral circulation occlusion and were treated with EVT. All patients were selected for treatment based on clinical criteria, multimodal computed tomography (CT) imaging. Eighty-four patients were treated with bridging IVT followed by EVT; 62 patients were treated with EVT only. RESULTS: Bridging therapy did not influence endovascular procedure time ( P = 0.71) or number of attempts needed ( P = 0.63). Bleeding from any site was more common in the bridging group (27, 32%) vs. the EVT group (12, 19%) ( P = 0.09). Functional independence modified Rankin Scale after 90 days was slightly higher in the bridging group (44%) vs. the EVT group (42%) ( P = 0.14). Mortality did not differ significantly at 90 days: 17% in the bridging group vs. 21% in EVT alone ( P = 0.57). Both treatment methods showed high recanalization rates: 94% in the bridging group and 89% for EVT alone. CONCLUSION: Bridging treatment in LVO did not show benefits or elevated risks of complications in comparison to EVT only. The bridging group did not show significantly better neurological outcome or significant impact on procedural parameters vs. EVT alone.
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Procedimientos Endovasculares/métodos , Accidente Cerebrovascular/tratamiento farmacológico , Accidente Cerebrovascular/cirugía , Trombectomía/métodos , Terapia Trombolítica/métodos , Anciano , Angiografía Cerebral , Terapia Combinada , Angiografía por Tomografía Computarizada , Femenino , Humanos , Masculino , Tempo Operativo , Complicaciones Posoperatorias , Estudios Prospectivos , Retratamiento , Accidente Cerebrovascular/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
PURPOSE: To evaluate the diagnostic performance of strain ratio elastography (SRE) and shear wave elastography (SWE) alone and in combination with Thyroid Imaging Reporting and Data System (TIRADS) classification parameters to improve differentiation between benign and malignant thyroid nodules. MATERIALS AND METHODS: In this prospective study benign (nâ=â191) and malignant (nâ=â52) thyroid nodules were examined with high-resolution ultrasound (US) features using the TIRADS lexicon and SRE semiquantitative and SWE quantitative findings using histology or cytology as the gold standard with a 12-month follow-up.âSensitivity (Se), specificity (Sp) and the area under the ROC curve (AUROC) were used to evaluate the diagnostic performance of each feature and combinations of the methods. RESULTS: TIRADS score showed a sensitivity of 59.6â%, a specificity of 83.8â% with an AUROC of 0.717, a PPV of 50.0â% and an NPV of 88.4â%. SRE yielded the highest performance with a sensitivity of 82.7â%, a specificity of 92.7â% with AUROC of 0.877, a PPV 75.4â% and an NPV of 95.2â%. SWE (kPa) had a sensitivity and specificity of 67.3â% and 82.7â%, respectively, with an AUROC of 0.750, a PPV of 51.5â% and an NPV of 90.3â%. Differences were significant for SRE only but not for SWE. CONCLUSION: Ultrasound elastography may improve thyroid nodule discrimination. In particular, SRE has a better performance than TIRADS classification, while their combination improves sensitivity.
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Diagnóstico por Imagen de Elasticidad , Nódulo Tiroideo , Sistemas de Datos , Humanos , Estudios Prospectivos , Sensibilidad y Especificidad , Nódulo Tiroideo/clasificación , Nódulo Tiroideo/diagnóstico por imagenRESUMEN
The miniaturization of ultrasound equipment in the form of tablet- or smartphone-sized ultrasound equipment is a result of the rapid evolution of technology and handheld ultrasound devices (HHUSD). This position paper of the European Federation of Societies in Ultrasound and Medicine (EFSUMB) assesses the current status of HHUSD in abdominal ultrasound, pediatric ultrasound, targeted echocardiography and heart ultrasound, and we will report position comments on the most common clinical applications. Also included is a SWOT (Strength - Weaknesses - Opportunities - Threats) analysis, the use for handheld devices for medical students, educational & training aspects, documentation, storage and safety considerations.
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Ecocardiografía , Ultrasonografía , Niño , Humanos , Ultrasonografía/instrumentaciónRESUMEN
This manuscript describes the use of ultrasound elastography, with the exception of liver applications, and represents an update of the 2013 EFSUMB (European Federation of Societies for Ultrasound in Medicine and Biology) Guidelines and Recommendations on the clinical use of elastography.
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Diagnóstico por Imagen de Elasticidad , Europa (Continente) , HumanosRESUMEN
The updated version of the EFSUMB guidelines on the application of non-hepatic contrast-enhanced ultrasound (CEUS) deals with the use of microbubble ultrasound contrast outside the liver in the many established and emerging applications.
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Guías de Práctica Clínica como Asunto , Adulto , Medios de Contraste , Femenino , Humanos , Aumento de la Imagen , Hígado/diagnóstico por imagen , Neoplasias Hepáticas , Masculino , Fosfolípidos , Hexafluoruro de Azufre , Ultrasonografía/normasRESUMEN
The updated version of the EFSUMB guidelines on the application of non-hepatic contrast-enhanced ultrasound (CEUS) deals with the use of microbubble ultrasound contrast outside the liver in the many established and emerging applications.
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Guías de Práctica Clínica como Asunto , Adulto , Medios de Contraste , Femenino , Humanos , Aumento de la Imagen , Hígado/diagnóstico por imagen , Neoplasias Hepáticas , Masculino , Fosfolípidos , Hexafluoruro de Azufre , Ultrasonografía/normasRESUMEN
Ascariasis is not widespread in Europe, and the knowledge on how to diagnose and treat the disease is limited to some specialists. On the other hand, clinicians are facing an increasing number of immigrants from high-prevalence countries and are, therefore, challenged to update in this field of infectious diseases. Here we present current knowledge on this infection in 2 parts. The first part discusses clinical features and hot topics in ascariasis, and the second part presents imaging features of ascariasis as a pictorial essay.
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Ascariasis , Ascariasis/diagnóstico , Europa (Continente) , HumanosRESUMEN
Context: Ultrasound-based risk stratification systems (Thyroid Imaging Reporting and Data Systems (TIRADSs)) of thyroid nodules (TNs) have been implemented in clinical practice worldwide based on their high performance. However, it remains unexplored whether different TIRADSs perform uniformly across a range of TNs in routine practice. This issue is highly relevant today, given the ongoing international effort to establish a unified TIRADS (i.e. I-TIRADS), supported by the leading societies specializing in TNs. The study aimed to conduct a direct comparison among ACR-, EU-, and K-TIRADS in the distribution of TNs: (1) across the TIRADS categories, and (2) based on their estimated cancer risk. Methods: A search was conducted on PubMed and Embase until June 2023. Original studies that sequentially assessed TNs using TIRADSs, regardless of FNAC indication, were selected. General study characteristics and data on the distribution of TNs across TIRADSs were extracted. Results: Seven studies, reporting a total of 41,332 TNs, were included in the analysis. The prevalence of ACR-TIRADS 1-2 was significantly higher than that of EU-TIRADS 2 and K-TIRADS 2, with no significant difference observed among intermediate- and high-risk categories of TIRADSs. According to malignancy risk estimation, K-TIRADS often classified TNs as having more severe risk, ACR-TIRADS as having moderate risk, and EU-TIRADS classified TNs as having lower risk. Conclusion: ACR-, EU-, and K-TIRADS assess TNs similarly across their categories, with slight differences in low-risk classifications. Despite this, focusing on cancer risk estimation, the three TIRADSs assess TNs differently. These findings should be considered as a prerequisite for developing the I-TIRADS.
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Nódulo Tiroideo , Ultrasonografía , Nódulo Tiroideo/patología , Nódulo Tiroideo/diagnóstico por imagen , Nódulo Tiroideo/epidemiología , Humanos , Europa (Continente)/epidemiología , Estados Unidos/epidemiología , Medición de Riesgo , Asia/epidemiología , Neoplasias de la Tiroides/patología , Neoplasias de la Tiroides/epidemiología , Neoplasias de la Tiroides/diagnóstico por imagen , Neoplasias de la Tiroides/diagnósticoRESUMEN
[This corrects the article on p. 106 in vol. 10, PMID: 32419979.].
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Up to 3% of all hepatocellular carcinomas (HCCs) present with a tumor thrombus (TT) in the inferior vena cava (IVC) and right atrium (RA). Extensive growth of HCC into the IVC and the RA is associated with a particularly poor prognosis. This clinical condition is related to a high risk of sudden death due to pulmonary embolism or acute heart failure. Therefore, a technically challenging treatment undergoing hepatectomy and cavo-atrial thrombectomy is necessary. We report a 61-year-old man presenting with right subcostal pain, progressive weakness, and periodic shortness of breath for 3 months. He was diagnosed with advanced HCC with a TT extending from the right hepatic vein into the IVC and RA. A multidisciplinary meeting with cardiovascular and hepatobiliary surgeons, oncologists, cardiologists, anesthesiologists, and radiologists was held to determine the best treatment approach. Initially, the patient underwent right hemihepatectomy. As follows, the cardiovascular stage using cardiopulmonary bypass was successfully performed, removing the TT from the RA and ICV. In the early postoperative period, the patient remained stable and was discharged on the 8th postoperative day. A morphological examination revealed grade 2/3 HCC, a clear cell variant with microvascular and macrovascular invasion. Immunohistochemical staining was positive for HEP-1, CD10, whereas negative for S100. The morphological and immunohistochemical results corresponded to HCC. The treatment of such patients requires the cooperation of various specialties. Although the approach of the surgery is extremely complex including specific technical support, as well as high perioperative risks, the result offers favorable clinical outcomes.