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Datta D, Kumar R, Goel AD. Utility of metabolic ratios in the diagnosis of tumor Thrombus on F-18 FDG PET/CT. EJNMMI REPORTS 2024; 8:12. [PMID: 38748073 PMCID: PMC11076428 DOI: 10.1186/s41824-024-00201-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/24/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND This study aims to predict quantitative parameter in form of metabolic ratios to diagnose tumor thrombus on F-18 FDG PET/CT. METHODS This is a retrospective study from Nuclear Medicine department at All India Institute of Medical Sciences, Jodhpur, India. Patients with malignancies who underwent F-18 FDG PET/CT in our department or images sent for review from February 2020 till September 2022 were screened for tumor thrombus that comprised study group. Control group had patients with malignancy and no imaging evidence of tumor thrombus. Metabolic activities (SUVmax) of tumor thrombus, liver and descending aorta in study group, and that of IVC, liver and descending aorta in control group were recorded. Metabolic ratios of tumor thrombus to liver (SUR L) and to aorta (SUR A) in study group, and IVC to liver (SUR* L) and to aorta (SUR*A) in control group were compared using receiver operator curves. RESULTS Of 2277 studies screened, 12 had tumor thrombus. The most common primary malignant site and vessel involved were lung and IVC respectively. The median (IQR) SUR L, SUR A, SUR* L and SUR* A were 2.5 (3.25), 2.6 (6), 0.67 (0.18) and 1 (0.17) respectively. Area under ROC for SUR L and SUR A were 0.983 [95% CI: 0.955-1.0] and 0.958 [95% CI: 0.90-1.0] respectively. The ideal cut-off for SUR L was 0.953 (sensitivity 92.3%, specificity 98.0%) and for SUR A was 1.42 (sensitivity 84.6%, specificity 98.0%). CONCLUSION Metabolic ratios of tumor thrombus to liver (SUR L) and aorta (SUR A) have good diagnostic performance and can be useful in studies with non-iodinated contrast CT.
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Affiliation(s)
- Deepanksha Datta
- Department of Nuclear Medicine, All India Institute of Medical Sciences, Jodhpur, India
| | - Rajesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, Jodhpur, India.
| | - Akhil Dhanesh Goel
- Department of Community Medicine, All India Institute of Medical Sciences, Jodhpur, India
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2
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Ahmed TM, Fishman EK, Chu LC. Cinematic Rendering of Pancreatic Neuroendocrine Tumours: Opportunities for Clinical Implementation: Part 1: Tumour Detection and Characterization. Can Assoc Radiol J 2024:8465371241239037. [PMID: 38504146 DOI: 10.1177/08465371241239037] [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: 03/21/2024] Open
Abstract
Pancreatic neuroendocrine tumours (PNETs) are a rare subset of pancreatic tumours that have historically comprised up to 3% of all clinically detected pancreatic tumours. In recent decades, however, advancements in imaging have led to an increased incidental detection rate of PNETs and imaging has played an increasingly central role in the initial diagnostics and surgical planning of these tumours. Cinematic rendering (CR) is a 3D post-processing technique that generates highly photorealistic images through more realistically modelling the path of photons through the imaged volume. This allows for more comprehensive visualization, description, and interpretation of anatomical structures. In this 2-part review article, we present the first description of the various CR appearances of PNETs in the reported literature while providing commentary on the unique clinical opportunities afforded by the adjunctive utilization of CR in the workup of these rare tumours. The first of these 2 instalments highlights the utility of CR in optimizing PNET detection and characterization.
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Affiliation(s)
- Taha M Ahmed
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elliot K Fishman
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Linda C Chu
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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3
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Layton BM, Lapsia SK. The Portal Vein: A Comprehensive Review. Radiographics 2023; 43:e230058. [PMID: 37856316 DOI: 10.1148/rg.230058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Radiologists are familiar with the appearances of a normal portal vein; variations in its anatomy are commonplace and require careful consideration due to the implications for surgery. These alterations in portal vein anatomy have characteristic appearances that are clearly depicted on CT, MR, and US images. Similarly, there are numerous congenital and acquired disorders of the portal vein that are deleterious to its function and can be diagnosed by using imaging alone. Some of these conditions have subtle imaging features, and some are conspicuous at imaging but poorly understood or underrecognized. The authors examine imaging appearances of the portal vein, first by outlining the classic and variant anatomy and then by describing each of the disorders that impact portal vein function. The imaging appearances of portal vein abnormalities discussed in this review include (a) occlusion from and differentiation between bland thrombus and tumor in vein and the changes associated with resultant hepatic artery buffer response changes, cavernous transformation of the portal vein, and portal biliopathy; (b) ascending thrombophlebitis of the portal vein (pylephlebitis); (c) portal hypertension and its causes and sequelae; (d) the newly described disease entity portosinusoidal vascular disorder; and (e) intra- and extrahepatic shunts of the portal system, both congenital and acquired (including Abernethy malformations), and the associated risks. Current understanding of the pathophysiologic processes of each of these disorders is considered to aid the approach to reporting. ©RSNA, 2023 Quiz questions for this article are available in the supplemental material.
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Affiliation(s)
- Benjamin M Layton
- From the Department of Radiology, East Lancashire Hospitals Trust, Royal Blackburn Hospital, Haslingden Rd, Blackburn, BB2 3HH, England (B.M.L., S.K.L.)
| | - Snehal K Lapsia
- From the Department of Radiology, East Lancashire Hospitals Trust, Royal Blackburn Hospital, Haslingden Rd, Blackburn, BB2 3HH, England (B.M.L., S.K.L.)
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Tathireddy H, Rice D, Martens K, Shivakumar S, Shatzel J. Breaking down tumor thrombus: Current strategies for medical management. Thromb Res 2023; 230:144-151. [PMID: 37722206 PMCID: PMC11027429 DOI: 10.1016/j.thromres.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/13/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
Tumor thrombus, the intravascular extension of tumor into adjacent blood vessels, is frequently encountered in patients with renal cell carcinoma and hepatocellular carcinoma, and often involves the abdominal vasculature including the renal vein, portal vein, and the inferior vena cava. While a bland thrombus is composed of platelets and fibrin, in contrast, a tumor thrombus refers to an organized collection of tumor cells. Though oftentimes detected incidentally on imaging, tumor thrombus may have significant clinical implications and can be challenging to differentiate from bland thrombus. Additionally, the optimal management of tumor thrombus, including the use of anticoagulation, remains poorly described. This review summarizes common causes of tumor thrombus, as well as its impact on staging, prognosis, and treatment.
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Affiliation(s)
- Harsha Tathireddy
- Division of Hematology and Medical Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.
| | - Douglas Rice
- Department of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Kylee Martens
- Division of Hematology and Medical Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | | | - Joseph Shatzel
- Division of Hematology and Medical Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA; Department of Biomedical Engineering, Oregon Health & Science University, OR, USA
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Cochran RL, Ghoshhajra BB, Hedgire SS. Body and Extremity MR Venography: Technique, Clinical Applications, and Advances. Magn Reson Imaging Clin N Am 2023; 31:413-431. [PMID: 37414469 DOI: 10.1016/j.mric.2023.04.004] [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: 07/08/2023]
Abstract
Magnetic resonance venography (MRV) represents a distinct imaging approach that may be used to evaluate a wide spectrum of venous pathology. Despite duplex ultrasound and computed tomography venography representing the dominant imaging modalities in investigating suspected venous disease, MRV is increasingly used due to its lack of ionizing radiation, unique ability to be performed without administration of intravenous contrast, and recent technical improvements resulting in improved sensitivity, image quality, and faster acquisition times. In this review, the authors discuss commonly used body and extremity MRV techniques, different clinical applications, and future directions.
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Affiliation(s)
- Rory L Cochran
- Division of Cardiovascular Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| | - Brian B Ghoshhajra
- Division of Cardiovascular Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| | - Sandeep S Hedgire
- Division of Cardiovascular Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA.
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Ge Z, Wang Y, Wang Y, Li W, Yang X, Li J, Wang H. Diagnostic experience of intravenous leiomyomatosis with emphasis on conventional ultrasonography imaging: a single-center study. Front Oncol 2023; 13:1203591. [PMID: 37492474 PMCID: PMC10364609 DOI: 10.3389/fonc.2023.1203591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/21/2023] [Indexed: 07/27/2023] Open
Abstract
Objective Intravenous leiomyomatosis (IVL) is a rare and aggressive tumor type that has the potential to extend into the inferior vena cava (IVC) and is susceptible to be misdiagnosed and neglected. Despite its clinical significance, there is a paucity of research that has focused on the specific manifestations of IVL on ultrasonography. Therefore, this study aims to systematically analyze the specific ultrasound features of IVL and augment its diagnostic accuracy. Materials and method Prospective inclusion was granted to patients admitted to our hospital between December 2016 and March 2021 for an IVC-occupying lesion. Multi-modal ultrasonography, encompassing gray-scale and color Doppler, was conducted. Lesions were categorized as IVL or non-IVL based on pathological or follow-up data. Two ultrasound sonographers with over 5 years of experience read and recorded ultrasound data for all lesions, which were subsequently comparatively analyzed to identify specific signs of IVL. Results A total of 284 patients diagnosed with IVC-occupying lesions were included in the study. The lesion types comprised of IVL (n=67, 23.6%), IVC thrombus (n=135, 47.5%), tumor thrombus of renal carcinoma involving the IVC (n=35, 12.4%), tumor thrombus of liver carcinoma involving the IVC (n=24, 8.5%), leiomyosarcoma of the IVC (n=14, 4.9%), and tumor thrombus of adrenocortical adenocarcinoma (n=9, 4.1%). The presence of "sieve hole" and "multi-track" signs was observed in 20 IVL lesions under the grey-scale modality, while both signs were absent in the non-IVL group (P<0.01). The study found no statistically significant differences in the presentation of "sieve hole" and "multi-track" signs under the grey-scale and color Doppler modalities in cases of intravascular lithotripsy (IVL) (P>0.05). Using these two signs as diagnostic criteria for IVL, the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), miss rate, misdiagnosis rate, and accuracy were determined to be 29.9%, 100%, 100%, 82.2%, 70.1%, 0, and 83.5%, respectively (AUC ROC=0.649; 95%CI: 0.537-0.761). Conclusion IVL exhibits distinct ultrasound presentations, including "sieve hole" and "multi-track" signs, which demonstrate high specificity and accuracy as diagnostic indicators. Furthermore, these signs are corroborated by pathological evidence and effectively distinguish IVL from other lesions occupying the IVC.
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Affiliation(s)
| | | | | | | | | | - Jianchu Li
- *Correspondence: Jianchu Li, ; Hongyan Wang,
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Gi T, Kuroiwa Y, Kihara Y, Miyaushiro S, Yamashita A. Magnetic Resonance Imaging of Cancer-Associated Deep Vein Thrombus in a Patient With Gastric Cancer. Circ Rep 2023; 5:265-266. [PMID: 37305795 PMCID: PMC10247346 DOI: 10.1253/circrep.cr-23-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 06/13/2023] Open
Affiliation(s)
- Toshihiro Gi
- Department of Pathology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
| | - Yasuyoshi Kuroiwa
- Department of Pathology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
- Department of Radiological Technology, Koga General Hospital Miyazaki Japan
| | - Yasushi Kihara
- Department of Radiology, Koga General Hospital Miyazaki Japan
| | - Sae Miyaushiro
- Department of Clinical Oncology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
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Ge Z, Wang Y, Wang Y, Fang S, Wang H, Li J. Diagnostic value of contrast-enhanced ultrasound in intravenous leiomyomatosis: a single-center experiences. Front Oncol 2022; 12:963675. [PMID: 36033528 PMCID: PMC9403056 DOI: 10.3389/fonc.2022.963675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Intravenous leiomyomatosis (IVL) is a rare disease, and few studies have focused on the diagnostic value of contrast-enhanced ultrasound (CEUS) in this condition. This study aimed to investigate the diagnostic value of CEUS in IVL and summarize the specific CEUS characteristics of IVL. Materials and Method From December 2016 to March 2021, 93 patients admitted to our hospital with inferior vena cava (IVC) occupying lesions were prospectively enrolled and underwent detailed ultrasound multi-modality examinations, including conventional and contrast-enhanced ultrasound scans. The diagnostic value of CEUS and conventional ultrasound (CU) in IVL was compared, and the specific IVL signs were summarized. Results Among the 93 patients with inferior vena cava mass, 67 were IVL while 26 were non-IVL. The inter-observer agreement of the two senior doctors was good, with Kappa coefficient = 0.71 (95% CI: 0.572–0.885). The area under the ROC curve of CU for IVL diagnosis was 0.652 (95% CI: 0.528–0.776), and its sensitivity, specificity, accuracy, positive predictive value, negative predictive value, missed diagnosis rate, and misdiagnosis rate were 61.1%, 69.2%, 63.4%, 83.7%, 40.9%, 38.8%, and 30.8%, respectively. The area under curve (AUC) for IVL diagnosis by CEUS was 0.807 (95% CI: 0.701–0.911), and the sensitivity, specificity, accuracy, positive predictive value, negative predictive value, missed diagnosis rate, and misdiagnosis rate were 82.0%, 84.6%, 82.8%, 93.2%, 64.7%, 15.4%, and 17.9%, respectively. In CEUS mode, “sieve hole sign” and “multi-track sign” were detected in 57 lesions, and the detected rate was higher than that of CU (https://loop.frontiersin.org/people/1014187 < 0.01). Conclusion CEUS can better show the fine blood flow inside the IVL, which is important for IVL differential diagnosis. Moreover, CEUS can obtain more information about IVL diagnosis than CU, compensating for the shortcomings of CU in detecting more blood flow within the lesion. Thus, this technique has great significance for IVL diagnosis.
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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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Agarwal S, Mullikin D, Scheurer ME, Smith V, Naik-Mathuria B, Guillerman RP, Foster JH, Diaz R, Sartain SE. Role of anticoagulation in the management of tumor thrombus: A 10-year single-center experience. Pediatr Blood Cancer 2021; 68:e29173. [PMID: 34061441 DOI: 10.1002/pbc.29173] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/23/2021] [Accepted: 05/13/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Children with cancer diagnosis are overall at a higher risk of thrombosis. For a newly diagnosed blood clot, patients are commonly started on anticoagulants to prevent further extension and embolization of the clot. In the rare instance that a pediatric patient has a tumor thrombus, role of anticoagulation is less clear. PROCEDURE/METHODS Patients under 21 years of age with a finding of tumor thrombus on imaging from 2010 to 2020 at Texas Children's Hospital were identified and their medical records were reviewed. RESULTS A total of 50 patients were identified. Most thrombi were incidental findings at diagnosis; however, two patients presented with pulmonary embolism (PE). Inferior vena cava extension was noted in 36% of the patients, and 24% patients had an intracardiac tumor thrombus. Anticoagulation was initiated in 10 patients (20%). There was no difference in the rate of bland thrombus formation and/or embolization in patients who did or did not receive anticoagulation. However, three of the six patients with asymptomatic tumor thrombus who were started on anticoagulation had bleeding complications compared to only two patients in the no anticoagulation cohort (p < .05). CONCLUSION Children with intravascular extension of solid tumors were not commonly started on anticoagulation at the time of diagnosis, irrespective of the extent of tumor thrombus. Furthermore, we observed a significant trend toward higher incidence of bleeding complications after initiation of anticoagulation for asymptomatic tumor thrombus. There is inadequate evidence at this time to support routine initiation of anticoagulation in pediatric patients with intravascular extension of solid tumors.
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Affiliation(s)
- Shreya Agarwal
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA
| | - Dolores Mullikin
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA
| | - Michael E Scheurer
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA.,Center for Epidemiology and Population Health, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Valeria Smith
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA
| | - Bindi Naik-Mathuria
- Department of Surgery, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - R Paul Guillerman
- Department of Radiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Jennifer H Foster
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA
| | - Rosa Diaz
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA
| | - Sarah E Sartain
- Texas Children's Hospital, Cancer and Hematology Center, Baylor College of Medicine, Houston, Texas, USA
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Marschall A, Rodriguez Torres D, Rueda Liñares A, Del Castillo Carnevali H, Dejuán Bitriá C, Fraile Sanz C, Duarte Torres J, Álvarez Antón S, Martí Sánchez D. Atrial cholangiocarcinoma diagnosed by cardiac magnetic resonance imaging. Echocardiography 2021; 38:1089-1092. [PMID: 34013545 DOI: 10.1111/echo.15079] [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: 02/09/2021] [Revised: 03/15/2021] [Accepted: 04/26/2021] [Indexed: 11/30/2022] Open
Abstract
In this rare case of intrahepatic cholangiocarcinoma (ICC) tumor thrombus with right atrial (RA) invasion, we describe its diagnostic workup based on cardiac magnetic resonance imaging (cMRI). An 85-year-old man underwent transthoracic echocardiography due to dyspnea, revealing a RA mass. Comprehensive cMRI evaluation, including cine bright blood, T1- and T2-weighed, fat-suppressed, and contrast-enhanced imaging, was performed and diagnosis of ICC tumor thrombus with RA invasion was made. This first description of cMRI-guided diagnosis of RA invasion by ICC tumor thrombus points out the usefulness of cMRI for the diagnostic approach of RA masses suggestive of tumor thrombus.
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