1
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Giri S, Vaidya A, Agrawal D, Varghese J, Patel RK, Tripathy T, Singh A, Das S. Role of contrast-enhanced ultrasound for differentiation of benign vs. malignant portal vein thrombosis in hepatocellular carcinoma - A systematic review a meta-analysis. Australas J Ultrasound Med 2024; 27:56-64. [PMID: 38434544 PMCID: PMC10902826 DOI: 10.1002/ajum.12375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Introduction/Purpose Patients with cirrhosis and hepatocellular carcinoma (HCC) can develop both benign and malignant portal vein thrombosis (PVT). Characterising the nature of PVT is important for planning an optimal therapeutic strategy. In the absence of typical findings or contraindications to computed tomography (CT) or magnetic resonance imaging (MRI), contrast-enhanced ultrasound (CEUS) could help in this differentiation. The present meta-analysis aimed to evaluate the performance of CEUS for characterising PVT in patients with HCC. Methods Electronic databases of PubMed, Embase and Scopus were searched from inception to 31 December 2022 for studies analysing the role of CEUS in the differentiation of benign and malignant PVT in HCC. Using the bivariate random effect model, pooled sensitivity and specificity were calculated, and the summary receiver operating characteristic (sROC) curve was plotted. Results A total of 12 studies with data from 712 patients were included in the meta-analysis. The pooled sensitivity and specificity of CEUS for the diagnosis of tumour in vein were 97.0% (95% CI: 93.0-98.7) and 96.8% (95% CI: 92.1-98.7), respectively, without significant heterogeneity. A sROC curve was plotted, and the area under the receiver operating characteristic was 0.99 (95% CI: 0.98-1.00). Despite the presence of publication bias, sensitivity analysis did not show any change in sensitivity and specificity. Discussion Our meta-analysis summarises the accuracy data from 12 studies, including >700 subjects. Contrast-enhanced ultrasound had excellent diagnostic accuracy with pooled sensitivity and specificity of 97.5% (95% CI: 93.5-99.1) and 98.2% (95% CI: 91.5-99.6), respectively, without any significant heterogeneity. Additionally, the pooled positive LR, negative LR and DOR were 54.6 (95% CI: 11.1-25.6), 0.02 (0.01-0.07) and 2186.8 (318.3-15022.2), respectively. A positive result increases the pretest probability of malignant PVT from 50% to 98%, whereas a negative result decreases it from 50% to 2%. Most of the studies included in our meta-analysis used identical techniques and 6-12-month follow-up scans to check for thrombus progression or regression. Our analysis showed no significant heterogeneity in the studies, and area under receiver operating characteristic curve (AUROC) with 95% CI was 1.00 (95% CI: 0.99-1.00). This critical meta-analysis thus propels CEUS to the forefront for differentiating benign from tumoural PVT and suggests routinely using CEUS in patients presenting with HCC and evidence of thrombus on greyscale ultrasound. Conclusion Contrast-enhanced ultrasound is an effective diagnostic modality differentiation of benign and malignant PVT in patients with HCC and can be an alternative modality to CT or MRI. Further studies are required to study the role of CEUS as initial diagnostic modality for the characterisation of PVT in HCC.
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Affiliation(s)
- Suprabhat Giri
- Department of Gastroenterology & HepatologyKalinga Institute of Medical SciencesBhubaneswarIndia
| | - Arun Vaidya
- Department of GastroenterologySeth GS Medical College and KEM HospitalMumbaiIndia
| | - Dhiraj Agrawal
- Department of GastroenterologyPACE HospitalHyderabadIndia
| | - Jijo Varghese
- Department of GastroenterologyKM Cherian Institute of Medical SciencesKallisseryIndia
| | - Ranjan Kumar Patel
- Department of RadiodiagnosisAll India Institute of Medical SciencesBhubaneswarIndia
| | - Taraprasad Tripathy
- Department of RadiodiagnosisAll India Institute of Medical SciencesBhubaneswarIndia
| | - Ankita Singh
- Department of GastroenterologySeth GS Medical College and KEM HospitalMumbaiIndia
| | - Swati Das
- Department of RadiologyKalinga Institute of Medical SciencesBhubaneswarIndia
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2
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Shroff N, Choi W, Elshikh M, Wong B, Bhargava P. Multimodality imaging approach in identifying invasive hepatocellular carcinoma. Clin Imaging 2023; 97:34-43. [PMID: 36889113 DOI: 10.1016/j.clinimag.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 02/25/2023] [Accepted: 03/01/2023] [Indexed: 03/07/2023]
Abstract
Hepatocellular carcinoma (HCC) is the 5th most common neoplasm and the 3rd leading cause of cancer related mortality worldwide. Early stages of the neoplasm may be treated curatively with liver resection or orthotopic liver transplant. However, HCC has a high propensity for vascular and locoregional invasion, which can preclude these treatment options. The portal vein is the most invaded structure, while other regional structures affected include the hepatic vein, inferior vena cava, gallbladder, peritoneum, diaphragm, and the gastrointestinal tract. Management of invasive and advanced stages of HCC includes modalities such as transarterial chemoembolization (TACE), transarterial radioembolization (TARE), and systemic chemotherapy, which are non-curative and focus on relieving tumor burden and slowing progression. A multimodality imaging approach is effective in identifying areas of tumor invasion and distinguishing between bland and tumor thrombi. Due to implications in prognosis and management, it is imperative for radiologists to accurately identify imaging patterns of regional invasion by HCC and to distinguish between bland and tumor thrombus in cases of potential vascular invasion.
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Affiliation(s)
- Neel Shroff
- Department of Radiology, University of Texas Medical Branch, Galveston, TX 77555, United States of America
| | - Woongsoon Choi
- Department of Radiology, University of Texas Medical Branch, Galveston, TX 77555, United States of America
| | - Mohamed Elshikh
- Department of Radiology, University of Texas Medical Branch, Galveston, TX 77555, United States of America
| | - Brian Wong
- Department of Radiology, University of Texas Medical Branch, Galveston, TX 77555, United States of America
| | - Peeyush Bhargava
- Department of Radiology, University of Texas Medical Branch, Galveston, TX 77555, United States of America.
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3
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Prakash S, Bies J, Hassan M, Mares A, Didia SC. Portal vein thrombosis in cirrhosis: A literature review. Front Med (Lausanne) 2023; 10:1134801. [PMID: 37181351 PMCID: PMC10169608 DOI: 10.3389/fmed.2023.1134801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/03/2023] [Indexed: 05/16/2023] Open
Abstract
Portal Vein Thrombosis (PVT), a common complication of advanced liver disease, is defined as an obstruction of the portal vein due to thrombus formation that can extend to the superior mesenteric and splenic veins. It was believed that PVT occurred predominantly due to prothrombotic potential. However, recent studies have shown that decreased blood flow related to portal hypertension appears to increase PVT risk as per Virchow's triad. It is well known that there is a higher incidence of PVTs in cirrhosis with a higher MELD and Child Pugh score. The controversy for management of PVTs in cirrhotics lies in the individualized assessment of risks versus benefits of anticoagulation, since these patients have a complex hemostatic profile with both bleeding and procoagulant propensities. In this review, we will systematically compile the etiology, pathophysiology, clinical features, and management of portal vein thrombosis in cirrhosis.
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Affiliation(s)
- Swathi Prakash
- Department of Internal Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Jared Bies
- Department of Internal Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Mariam Hassan
- Department of Internal Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
| | - Adriana Mares
- Paul L. Foster School of Medicine, El Paso, TX, United States
| | - S. Claudia Didia
- Department of Internal Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, TX, United States
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4
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Fan PL, Chu J, Wang Q, Wang C. The clinical value of dual-energy computed tomography and diffusion-weighted imaging in the context of liver cancer: A narrative review. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:862-868. [PMID: 35338779 DOI: 10.1002/jcu.23197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/22/2022] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
The dual-energy computed tomography (DECT) and diffusion-weighted magnetic resonance imaging (DWI-MRI) are used to diagnose liver cancer. The clinical value of these two examination methods needs to be further summarized. We collected and summarized relevant literature published from 2011 to 2021. The diagnostic performance of DECT was assessed between conventional computed tomography and DWI-MRI. DWI-MRI had a 69% sensitivity for detecting small hepatocellular carcinoma (HCC) lesions and a 60% diagnostic specificity for differentiating between types of HCC lesions. DECT had a sensitivity to small liver lesions (<1 cm) of 69%, and the diagnostic specificity for HCC and metastasis was about 60%. DWI was more sensitive (90.3% vs. 74.9%) and accurate (91.9% vs. 76.9%) in diagnosing HCC compared with conventional MRI sequencing. With the aid of contrast media, DWI-MRI had 90.0% specificity for detecting small HCCs (smaller than 1 cm). Furthermore, DWI-MRI not only provided physicians with valuable diagnostic information but also delivered histological grading information, with 78% accuracy for all benign lesions and 71% for solid lesions. DECT had relatively high sensitivity and required a lower contrast medium dose. With standardized quantitative parameters, it can be an extremely useful tool for HCC surveillance. DWI-MRI is the preferred imaging process as it produces high-contrast images for supporting an early diagnosis (high sensitivity and specificity) and provides histological information using non-ionizing radiation.
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Affiliation(s)
- Pei-Lin Fan
- Discipline of Diagnostic Radiography, University of Sydney, Sydney, Australia
| | - Jun Chu
- Discipline of Diagnostic Radiography, University of Sydney, Sydney, Australia
| | - Qing Wang
- Discipline of Diagnostic Radiography, University of Sydney, Sydney, Australia
| | - Chen Wang
- Discipline of Diagnostic Radiography, University of Sydney, Sydney, Australia
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5
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Keshav N, Ohliger MA. Imaging Vascular Disorders of the Liver. Radiol Clin North Am 2022; 60:857-871. [DOI: 10.1016/j.rcl.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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ERBAY G, PEHLİVAN UA. Anormal uterin kanama ile seyreden tümör trombüsünün nadir bir nedeni olarak uterin leiomyomatozis. CUKUROVA MEDICAL JOURNAL 2022. [DOI: 10.17826/cumj.1088379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Anormal uterin kanama ile seyreden tümör trombüsünün nadir bir nedeni olarak uterin leiomyomatozis
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Affiliation(s)
- Gürcan ERBAY
- BAŞKENT ÜNİVERSİTESİ, TURGUT NOYAN UYGULAMA VE ARAŞTIRMA MERKEZİ
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7
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Abstract
Patients with cirrhosis of the liver are at high risk of developing portal vein thrombosis (PVT), which has a complex, multifactorial cause. The condition may present with a myriad of symptoms and can occasionally cause severe complications. Contrast-enhanced computed tomography (CT) is the gold standard for the diagnosis of PVT. There are uncertainties regarding the effect on PVT and its treatment outcome in patients with cirrhosis. The main challenge for managing PVT in cirrhosis is analyzing the risk of hemorrhage compared to the risk of thrombus extension leading to complications. All current knowledge regarding non-tumor PVT in cirrhosis, including epidemiology, risk factors, classification, clinical presentation, diagnosis, impact on natural history, and treatment, is discussed in the present article.
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Key Words
- ACLF, acute-on-chronic liver failure
- BCS, Budd–Chiari syndrome
- DOACs, direct-acting oral anticoagulants
- EASL, European Association for the Study of the Liver
- HCC, hepatocellular carcinoma
- HVPG, hepatic venous pressure gradient
- INR, international normalized ratio
- JAK2, Janus Kinase 2
- LMWH, low molecular weight heparin
- LT, liver transplant
- MELD, Model for End-Stage Liver Disease
- MTHFR, methyltetrahydrofolate reductase
- NASH, non-alcoholic steatohepatitis
- NO, nitric oxide
- NSBBs, non-selective beta-blockers
- PV, portal vein
- PVT, Portal vein thrombosis
- RCT, randomized controlled trial
- SMA, superior mesenteric artery
- SMV, superior mesenteric vein
- SVT, splanchnic vein thrombosis
- TIPS, Transjugular intrahepatic portosystemic shunt
- UNOS, United Network for Organ Sharing
- VEGF, vascular endothelial growth factors
- VKAs, vitamin K antagonists
- VKORC1, vitamin K epoxide reductase complex 1
- anticoagulation
- cirrhosis
- eNOS, endothelial nitric oxide synthase
- non-tumoral portal vein thrombosis
- portal hypertension
- rTPA, recombinant tissue plasminogen activator
- transjugular intrahepatic portosystemic shunt
- vWF, von Willebrand factor
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8
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Kuroiwa Y, Kusumoto K, Shimata K, Yamashita A, Hibi T, Asada Y, Imamura T. MRI diffusion-weighted imaging detects a fresh portal vein thrombus as a high intensity lesion in a patient with a liver transplant: A case report. Acta Radiol Open 2021; 10:20584601211069557. [PMID: 34992794 PMCID: PMC8725224 DOI: 10.1177/20584601211069557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/09/2021] [Indexed: 11/23/2022] Open
Abstract
Portal vein thrombosis is one of the most serious complications after liver transplantation. It is important to determine the age of the thrombus for management of portal vein thrombosis. We present a case report of histologically confirmed heterogenous fresh portal vein thrombus which was depicted heterogenous high signal intensity on magnetic resonance diffusion weighted imaging. The sequence may be a useful imaging tool for detecting fresh thrombus components in the portal vein thrombosis.
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Affiliation(s)
- Yasuyoshi Kuroiwa
- Department of Radiological Technology,
Internal Medicine, Koga General Hospital, Miyazaki, Japan
- Department of Pathology, Faculty of
Medicine, University of Miyazaki, Miyazaki, Japan
| | | | - Keita Shimata
- Department of Pediatric Surgery and
Transplantation, Kumamoto University Graduate School of Medical
Sciences, Kumamoto, Japan
| | - Atsushi Yamashita
- Department of Pathology, Faculty of
Medicine, University of Miyazaki, Miyazaki, Japan
| | - Taizo Hibi
- Department of Pediatric Surgery and
Transplantation, Kumamoto University Graduate School of Medical
Sciences, Kumamoto, Japan
| | - Yujiro Asada
- Department of Pathology, Faculty of
Medicine, University of Miyazaki, Miyazaki, Japan
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9
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Xu S, Guo X, Yang B, Romeiro FG, Primignani M, Méndez-Sánchez N, Yoshida EM, Mancuso A, Tacke F, Noronha Ferreira C, De Stefano V, Qi X. Evolution of Nonmalignant Portal Vein Thrombosis in Liver Cirrhosis: A Pictorial Review. Clin Transl Gastroenterol 2021; 12:e00409. [PMID: 34597281 PMCID: PMC8483868 DOI: 10.14309/ctg.0000000000000409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/22/2021] [Indexed: 02/07/2023] Open
Abstract
Portal vein thrombosis (PVT) is a common complication in liver cirrhosis, especially in advanced cirrhosis. It may be related to a higher risk of liver-related events and liver function deterioration. Imaging examinations can not only provide an accurate diagnosis of PVT, such as the extent of thrombus involvement and the degree of lumen occupied, but also identify the nature of thrombus (i.e., benign/malignant and acute/chronic). Evolution of PVT, mainly including development, recanalization, progression, stability, and recurrence, could also be assessed based on the imaging examinations. This article briefly reviews the pathophysiology, diagnosis, classification, and evolution of PVT with an emphasis on their computed tomography imaging features.
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Affiliation(s)
- Shixue Xu
- Liver Cirrhosis Study Group, Department of Gastroenterology, The General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, China
- Graduate School, China Medical University, Shenyang, China
| | - Xiaozhong Guo
- Liver Cirrhosis Study Group, Department of Gastroenterology, The General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, China
| | - Benqiang Yang
- Department of Radiology, The General Hospital of Northern Theater Command, Shenyang, China
| | - Fernando Gomes Romeiro
- Department of Internal Medicine, Botucatu Medical School, UNESP-Univ Estadual Paulista. Av. Prof. Mário Rubens Guimarães Montenegro, s/n Distrito de Rubião Jr, Botucatu, Brazil
| | - Massimo Primignani
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Division of Gastroenterology and Hepatology, Milan, Italy
| | - Nahum Méndez-Sánchez
- Liver Research Unit, Medica Sur Clinic and Foundation and Faculty of Medicine. National Autonomous University of Mexico, Mexico City, Mexico
| | - Eric M. Yoshida
- Division of Gastroenterology, University of British Columbia and Vancouver General Hospital, Vancouver, Canada
| | - Andrea Mancuso
- Medicina Interna 1, Azienda di Rilievo Nazionale ad Alta Specializzazione Civico, Di Cristina-Benfratelli, Palermo, Italy
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Carlos Noronha Ferreira
- Serviço de Gastrenterologia e Hepatologia, Hospital de Santa Maria-Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - Valerio De Stefano
- Dipartimento Di Diagnostica Per Immagini, Radioterapia Oncologica Ed Ematologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Xingshun Qi
- Liver Cirrhosis Study Group, Department of Gastroenterology, The General Hospital of Northern Theater Command (formerly General Hospital of Shenyang Military Area), Shenyang, China
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10
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Sofia C, Cattafi A, Silipigni S, Pitrone P, Carerj ML, Marino MA, Pitrone A, Ascenti G. Portal vein thrombosis in patients with chronic liver diseases: From conventional to quantitative imaging. Eur J Radiol 2021; 142:109859. [PMID: 34284232 DOI: 10.1016/j.ejrad.2021.109859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/22/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023]
Abstract
Portal vein thrombosis is a pathological condition characterized by the lumen occlusion of the portal vein and its intrahepatic branches, commonly associated to chronic liver diseases. Portal vein thrombosis is often asymptomatic and discovered as an incidental finding in the follow-up of chronic hepatopathy. Imaging plays a pivotal role in the detection and characterization of portal vein thrombosis in patients with hepatocellular carcinoma. Ultrasound and Color-Doppler ultrasound are usually the first-line imaging modalities for its detection, but they have limits related to operator-experience, patient size, meteorism and the restrained field-of view. Unenhanced cross-sectional imaging doesn't provide specific signs of portal vein thrombosis except under certain specific circumstances. Conventional contrast-enhanced imaging can depict portal vein thrombosis as an endoluminal filling defect best detected in venous phase and can differentiate between non-neoplastic and neoplastic thrombus based on the contrast enhanced uptake, but not always rule-out the malignant nature. Functional and quantitative imaging techniques and software seem to be more accurate. The purpose of this work is to provide the reader with an accurate overview focused on the main imaging features of portal vein thrombosis.
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Affiliation(s)
- C Sofia
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy.
| | - A Cattafi
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
| | - S Silipigni
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
| | - P Pitrone
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
| | - M L Carerj
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
| | - M A Marino
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
| | - A Pitrone
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
| | - G Ascenti
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G.Martino, University of Messina, Messina, Italy
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11
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Abstract
Patients with early stage hepatocellular carcinoma (HCC) can be cured by liver transplantation. HCC imaging features on CT or MRI are specific enough to allow for definitive diagnosis and treatment without the need of confirmatory biopsy. When applied to the appropriate at-risk population the Liver Imaging Reporting and Data System (LI-RADS) imaging criteria achieve high specificity and positive predictive value for the diagnosis of HCC. The Organ Procurement and Transplantation Network (OPTN) is the United States organization that aims to assure the adequate and fair distribution of livers across candidates. Given the importance of fair organ allocation, OPTN also provides stringent imaging criteria for the diagnosis of HCC aiming to avoid false positive diagnosis. Although most imaging criteria are identical for both systems, discrepancies between LI-RADS and the current OPTN classification system for HCC diagnosis exists. Main differences include, but are not limited to, the binary approach of OPTN to classify lesions as HCC or not, versus the probabilistic algorithmic approach of LI-RADS, technical and interpretation considerations, and the approach towards treated lesions. The purpose of this article is to highlight the similarities and discrepancies between LI-RADS and the current OPTN criteria for HCC diagnosis and the implications that these differences may have on the management of patients who are transplant candidates.
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12
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Minoda AM, Cadete RBF, Teixeira SR, Muglia VF, Elias Junior J, de Melo-Leite AF. The ABCD of portal vein thrombosis: a systematic approach. Radiol Bras 2020; 53:424-429. [PMID: 33304012 PMCID: PMC7720666 DOI: 10.1590/0100-3984.2019.0109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Portal vein thrombosis refers to complete or partial obstruction of the portal venous system, in the intrahepatic or extrahepatic venous tract or even in the splenic or superior mesenteric veins. This common and potentially fatal condition can develop in various clinical contexts, especially those of liver cirrhosis, hepatocellular carcinoma, and other solid tumors. Certain characteristics, such as the time since the onset of the thrombus (acute or chronic), its biology (hematic or tumoral), the presence of collateral vessels, and the magnetic resonance imaging aspects, are important components of a thorough, careful analysis, as well as informing decisions regarding the appropriate therapeutic strategy. Here, we present a brief review of the anatomy of the portal venous system and a systematic approach to analyzing the condition, using a mnemonic (ABCD, for age, biology, collaterals, and diffusion). We discuss the various imaging methods and illustrate our discussion with images selected from the case files archived at our facility.
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Affiliation(s)
| | | | - Sara Reis Teixeira
- Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brazil
| | - Valdair Francisco Muglia
- Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brazil
| | - Jorge Elias Junior
- Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brazil
| | - Andréa Farias de Melo-Leite
- Instituto de Medicina Integral Professor Fernando Figueira (IMIP), Recife, PE, Brazil.,Universidade Federal de Pernambuco (UFPE), Recife, PE, Brazil
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13
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LeGout JD, Bailey RE, Bolan CW, Bowman AW, Chen F, Cernigliaro JG, Alexander LF. Multimodality Imaging of Abdominopelvic Tumors with Venous Invasion. Radiographics 2020; 40:2098-2116. [PMID: 33064623 DOI: 10.1148/rg.2020200047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A broad range of abdominal and pelvic tumors can manifest with or develop intraluminal venous invasion. Imaging features at cross-sectional modalities and contrast-enhanced US that allow differentiation of tumor extension within veins from bland thrombus include the expansile nature of tumor thrombus and attenuation and enhancement similar to those of the primary tumor. Venous invasion is a distinctive feature of hepatocellular carcinoma and renal cell carcinoma with known prognostic and treatment implications; however, this finding remains an underrecognized characteristic of multiple other malignancies-including cholangiocarcinoma, adrenocortical carcinoma, pancreatic neuroendocrine tumor, and primary venous leiomyosarcoma-and can be a feature of benign tumors such as renal angiomyolipoma and uterine leiomyomatosis. Recognition of tumor venous invasion at imaging has clinical significance and management implications for a range of abdominal and pelvic tumors. For example, portal vein invasion is a strong negative prognostic indicator in patients with hepatocellular carcinoma. In patients with rectal cancer, diagnosis of extramural venous invasion helps predict local and distant recurrence and is associated with worse survival. The authors present venous invasion by vascular distribution and organ of primary tumor origin with review of typical imaging features. Common pitfalls and mimics of neoplastic thrombus, including artifacts and anatomic variants, are described to help differentiate these findings from tumor in vein. By accurately diagnosing tumor venous invasion, especially in tumors where its presence may not be a typical feature, radiologists can help referring clinicians develop the best treatment strategies for their patients. ©RSNA, 2020.
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Affiliation(s)
- Jordan D LeGout
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
| | - Ryan E Bailey
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
| | - Candice W Bolan
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
| | - Andrew W Bowman
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
| | - Frank Chen
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
| | - Joseph G Cernigliaro
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
| | - Lauren F Alexander
- From the Department of Radiology, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224
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