keyword
Keywords images Thymic epith...

images Thymic epithelial tumor

https://read.qxmd.com/read/38484307/the-role-of-18-f-fdg-pet-ct-in-the-characterization-of-thymic-epithelial-tumors-at-initial-stage
#1
JOURNAL ARTICLE
Caner Civan, Zeynep Gozde Ozkan, Berker Ozkan, Emine Goknur Isik, Eren Erdogdu, Duygu Has Simsek, Salih Duman, Yasemin Sanli, Murat Kara, Serkan Kuyumcu, Alper Toker
Purpose: The aim of this study was to evaluate the potential role of [18 F]FDG positron emission tomography/computed tomography (PET/CT) in the characterization of thymic epithelial tumors (TETs). Materials and Methods: A total of 73 patients who underwent preoperative [18 F]FDG PET/CT were included in this study. Visual total score (VTS), maximum standard uptake values (SUVmax), metabolic tumor volume (MTV), total lesion glycolysis (TLG), and heterogeneity index (HI) parameters were analyzed to investigate the prediction of histopathologic grade and advanced stage...
March 14, 2024: Cancer Biotherapy & Radiopharmaceuticals
https://read.qxmd.com/read/38470599/mhd-net-memory-aware-hetero-modal-distillation-network-for-thymic-epithelial-tumor-typing-with-missing-pathology-modality
#2
JOURNAL ARTICLE
Huaqi Zhang, Jie Liu, Weifan Liu, Huang Chen, Zekuan Yu, Yixuan Yuan, Pengyu Wang, Jing Qin
Fusing multi-modal radiology and pathology data with complementary information can improve the accuracy of tumor typing. However, collecting pathology data is difficult since it is high-cost and sometimes only obtainable after the surgery, which limits the application of multi-modal methods in diagnosis. To address this problem, we propose comprehensively learning multi-modal radiology-pathology data in training, and only using uni-modal radiology data in testing. Concretely, a Memory-aware Hetero-modal Distillation Network (MHD-Net) is proposed, which can distill well-learned multi-modal knowledge with the assistance of memory from the teacher to the student...
March 12, 2024: IEEE Journal of Biomedical and Health Informatics
https://read.qxmd.com/read/38415117/the-combination-of-maximum-standardized-uptake-value-and-clinical-parameters-for-improving-the-accuracy-in-distinguishing-primary-mediastinal-lymphomas-from-thymic-epithelial-tumors
#3
JOURNAL ARTICLE
Hui Yan, Lihua Wang, Bei Lei, Maomei Ruan, Cheng Chang, Mingge Zhou, Liu Liu, Wenhui Xie, Yuetao Wang
BACKGROUND: Anterior mediastinal masses are relatively uncommon, and mediastinal lymphomas are the malignancies most likely to be confused with thymic epithelial tumors (TETs). The aim of this study was to investigate whether the combination of 18 fluorine-fluorodeoxyglucose positron emission tomography-computed tomography (18 F-FDG PET-CT) findings and clinical parameters is useful in differentiating lymphoma from TETs in anterior mediastinal masses. METHODS: This retrospective study consecutively included 304 patients with anterior mediastinal masses (244 TETs and 60 lymphomas) who underwent 18 F-FDG PET-CT 1 to 2 weeks before tumor resection or biopsy between August 2016 and March 2022...
February 1, 2024: Quantitative Imaging in Medicine and Surgery
https://read.qxmd.com/read/38306885/international-reproducibility-study-of-thymic-epithelial-tumors-staging-pt-stage-is-an-issue-proposals-for-improvement-a-rythmic-itmig-study
#4
JOURNAL ARTICLE
Thierry J Molina, Anja C Roden, Malgorzata Szolkowska, Shigeki Shimizu, Andre L Moreira, Lara Chalabreysse, Benjamin Besse, Vincent de Montpréville, Edith M Marom, Frank Detterbeck, Nicolas Girard, Andrew G Nicholson, Alexander Marx
INTRODUCTION: Pathologists are staging thymic epithelial tumors (TET) according to the 8th UICC/AJCC TNM system. Within the French RYTHMIC network, dedicated to TET, agreement on pathologic tumor stage (pT) among the pathology panelists was difficult. The aim of our study was to determine the interobserver reproducibility of pT at an international level, to explore the source of discrepancies and potential interventions to address these. METHODS: An international panel of pathologists was recruited through the International Thymic Malignancy Interest Group (ITMIG)...
January 24, 2024: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://read.qxmd.com/read/38191331/a-diagnostic-model-based-on-18-f-fdg-pet-ct-parameters-in-improving-the-differential-diagnosis-of-invasive-thymic-epithelial-tumors-and-anterior-mediastinal-lymphomas
#5
JOURNAL ARTICLE
Shuo Zhou, Pokwan Tsui, Meifu Lin, Guobao Chen, Wenxin Chen, Xiangran Cai
BACKGROUND: Accurately distinguishing between invasive thymic epithelial tumors (TETs) and anterior mediastinal lymphoma before surgery is crucial for subsequent treatment choices. But currently, the diagnosis of invasive TET is sometimes difficult to distinguish from anterior mediastinal lymphoma. OBJECTIVE: To assess the application of fluorine-18-fluorodeoxyglucose (18 F-FDG) positron emission tomography/computer tomography (PET/CT) in the differential diagnosis of TETs and anterior mediastinal lymphomas...
January 8, 2024: BMC Medical Imaging
https://read.qxmd.com/read/38178266/histogram-analysis-based-on-unenhanced-ct-for-identifying-thymoma-and-lymphoma-among-prevascular-mediastinal-incidentalomas
#6
JOURNAL ARTICLE
Ming Liu, Yang Zhang, Li-Heng Liu
OBJECTIVE: To determine whether histogram analysis based on unenhanced CT can play a role in the differential diagnosis of thymoma and lymphoma from thymic hyperplasia and cyst (mean CT attenuation > 10 HU). MATERIALS AND METHODS: This retrospective study included consecutive asymptomatic participants who have prevascular mediastinal lesions incidentally detected by unenhanced CT between December 2013 and August 2020, and with definitive diagnosis by pathology or additional radiologic work-ups...
January 4, 2024: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://read.qxmd.com/read/38010596/computed-tomography-radiomic-feature-analysis-of-thymic-epithelial-tumors-differentiation-of-thymic-epithelial-tumors-from-thymic-cysts-and-prediction-of-histological-subtypes
#7
JOURNAL ARTICLE
Wenya Zhao, Yoshiyuki Ozawa, Masaki Hara, Katsuhiro Okuda, Akio Hiwatashi
PURPOSE: To investigate the value of computed tomography (CT) radiomic feature analysis for the differential diagnosis between thymic epithelial tumors (TETs) and thymic cysts, and prediction of histological subtypes of TETs. MATERIALS AND METHODS: Twenty-four patients with TETs (13 low-risk and 9 high-risk thymomas, and 2 thymic carcinomas) and 12 with thymic cysts were included in this study. For each lesion, the radiomic features of a volume of interest covering the lesion were extracted from non-contrast enhanced CT images...
November 27, 2023: Japanese Journal of Radiology
https://read.qxmd.com/read/37998604/unsolved-issues-in-thymic-epithelial-tumour-stage-classification-the-role-of-tumour-dimension
#8
JOURNAL ARTICLE
Carolina Sassorossi, Pietro Bertoglio, Filippo Lococo, Gloria Santoro, Elisa Meacci, Dania Nachira, Maria Teresa Congedo, Jury Brandolini, Matteo Petroncini, Adriana Nocera, Diepriye Charles-Davies, Piergiorgio Solli, Stefano Margaritora, Marco Chiappetta
According to the different classifications now in use, thymic tumours are staged by the extent of local invasiveness, and tumour size is not included as a major determinant for the T category. The aim of this double-site retrospective study is to analyse the correlation between tumour dimension and overall survival (OS) in patients who underwent surgical treatment. From January 2000 to December 2020, patients with thymic epithelial tumours who underwent surgical resection were included in this study. Data from a total of 332 patients were analysed...
November 17, 2023: Diagnostics
https://read.qxmd.com/read/37832194/deep-learning-based-radiomic-nomogram-to-predict-risk-categorization-of-thymic-epithelial-tumors-a-multicenter-study
#9
JOURNAL ARTICLE
Hao Zhou, Harrison X Bai, Zhicheng Jiao, Biqi Cui, Jing Wu, Haijun Zheng, Huan Yang, Weihua Liao
PURPOSE: The study was aimed to develop and evaluate a deep learning-based radiomics to predict the histological risk categorization of thymic epithelial tumors (TETs), which can be highly informative for patient treatment planning and prognostic assessment. METHOD: A total of 681 patients with TETs from three independent hospitals were included and separated into derivation cohort and external test cohort. Handcrafted and deep learning features were extracted from preoperative contrast-enhanced CT images and selected to build three radiomics signatures (radiomics signature [Rad_Sig], deep learning signature [DL_Sig] and deep learning radiomics signature [DLR_Sig]) to predict risk categorization of TETs...
October 5, 2023: European Journal of Radiology
https://read.qxmd.com/read/37752995/risk-factor-analysis-for-major-mediastinal-vessel-invasion-in-thymic-epithelial-tumors-based-on-multi-slice-ct-imaging
#10
JOURNAL ARTICLE
Yu-Hui Ma, Jie Zhang, Wei-Qiang Yan, Jiang-Tao Lan, Xiu-Long Feng, Shu-Mei Wang, Guang Yang, Yu-Chuan Hu, Guang-Bin Cui
OBJECTIVE: To explore the characteristics and risk factors for major mediastinal vessel invasion in different risk grades of thymic epithelial tumors (TETs) based on computed tomography (CT) imaging, and to develop prediction models of major mediastinal artery and vein invasion. METHODS: One hundred and twenty-two TET patients confirmed by histopathological analysis who underwent thorax CT were enrolled in this study. Clinical and CT data were retrospectively reviewed for these patients...
2023: Frontiers in Oncology
https://read.qxmd.com/read/37711814/the-predictive-value-of-a-computed-tomography-based-radiomics-model-for-the-surgical-separability-of-thymic-epithelial-tumors-from-the-superior-vena-cava-and-the-left-innominate-vein
#11
JOURNAL ARTICLE
Zhiyang Li, Fuqiang Wang, Hanlu Zhang, Hong Zheng, Xue Zhou, Zhensong Wang, Shenglong Xie, Lei Peng, Xuyang Wang, Yun Wang
BACKGROUND: The aim of this study was to develop a radiomics machine learning model based on computed tomography (CT) that can predict whether thymic epithelial tumors (TETs) can be separated from veins during surgery and to compare the accuracy of the radiomics model to that of radiologists. METHODS: Patients who underwent thymectomy at our hospital from 2009 to 2017 were included in the screening process. After the selection of patients according to the inclusion and exclusion criteria, the cohort was randomly divided into training and testing groups, and CT images of these patients were collected...
September 1, 2023: Quantitative Imaging in Medicine and Surgery
https://read.qxmd.com/read/37697376/thymic-hyperplasia-with-lymphoepithelial-sialadenitis-lesa-like-features-a-case-report-and-literature-review
#12
REVIEW
Wenfeng Xu, Long Wang, Hao Tang, Ling Luo, Yujuan Xu, Deyu Guo
BACKGROUND: Thymic hyperplasia with lymphoepithelial sialadenitis-like features (LESA-like TH) is a rare form of thymic hyperplasia, characterized by a prominent expansion of the thymic medulla containing hyperplastic lymphoid follicles with germinal centers, while an almost total absence of thymic cortex. Since the first report in 2012, only a few cases of LESA-like TH have been reported in the literature to date. Due to the rarity of LESA-like TH and the tumor-like morphology, it is easy to be misdiagnosed as other common diseases of the thymus in routine practice, such as thymoma and lymphoma...
September 11, 2023: Diagnostic Pathology
https://read.qxmd.com/read/37644397/diagnostic-performance-of-radiomics-model-for-preoperative-risk-categorization-in-thymic-epithelial-tumors-a-systematic-review-and-meta-analysis
#13
JOURNAL ARTICLE
Xue-Fang Lu, Tie-Yuan Zhu
BACKGROUND: Incidental thymus region masses during thoracic examinations are not uncommon. The clinician's decision-making for treatment largely depends on imaging findings. Due to the lack of specific indicators, it may be of great value to explore the role of radiomics in risk categorization of the thymic epithelial tumors (TETs). METHODS: Four databases (PubMed, Web of Science, EMBASE and the Cochrane Library) were screened to identify eligible articles reporting radiomics models of diagnostic performance for risk categorization in TETs patients...
August 29, 2023: BMC Medical Imaging
https://read.qxmd.com/read/37552308/differentiating-thymic-epithelial-tumors-from-mediastinal-lymphomas-preoperative-nomograms-based-on-pet-ct-radiomic-features-to-minimize-unnecessary-anterior-mediastinal-surgery
#14
JOURNAL ARTICLE
Jiatong Li, Nan Cui, Zhiyun Jiang, Wei Li, Wei Liu, Shuai Wang, Kezheng Wang
PURPOSE: Clinical feasibility nomograms were developed to facilitate the differentiation between thymic epithelial tumors (TETs) and mediastinal lymphomas (MLs), aiming to minimize the occurrence of non-therapeutic thymectomy. METHODS: A total of 255 patients diagnosed with TETs or MLs underwent pre-treatment 18 F-FDG PET/CT. Comprehensive clinical and imaging data were collected, including age, gender, lactate dehydrogenase (LDH) level, pathological results, presence of myasthenia gravis symptoms, B symptoms, mass size, location, morphology, margins, density, and metabolic parameters derived from PET/CT...
August 8, 2023: Journal of Cancer Research and Clinical Oncology
https://read.qxmd.com/read/37486626/the-maximal-contrast-enhanced-range-of-ct-for-differentiating-the-who-pathological-subtypes-and-risk-subgroups-of-thymic-epithelial-tumors
#15
JOURNAL ARTICLE
Chunhai Yu, Ting Li, Xiaotang Yang, Lei Xin, Zhikai Zhao, Zhao Yang, Ruiping Zhang
OBJECTIVES: To explore the value of maximal contrast-enhanced range (CEmax) using contrast-enhanced CT (CECT) imaging in differentiating the pathological subtypes and risk subgroups of thymic epithelial tumors (TETs). METHODS: The pretreatment-CECT images of 319 TET patients from May 2012 to November 2021 were analyzed retrospectively. The CEmax was defined as the maximum difference between the CT value of the solid tumor on precontrast and contrast-enhanced images...
July 24, 2023: British Journal of Radiology
https://read.qxmd.com/read/37261096/asymptomatic-lipofibroadenoma-in-a-17-year-old-male-a-case-report-and-literature-review-of-a-rare-entity
#16
Michael A den Bakker, Marijn A Vermeulen, Cornelis P van de Ven, Simone A J Ter Horst, Lennart Kester, Ronald R de Krijger
BACKGROUND: The most common thymic tumours, thymomas, are derived from thymic epithelium and are generally low-grade neoplasm. Frankly malignant tumours, thymic carcinomas are rarer still. Exceedingly rare thymic tumours contain a mesenchymal tissue component such as fibrous connective tissue and/or mature fat. Lipofibroadenoma (LFA) is a very rare mixed epithelial-mesenchymal thymic tumour, included in the category of thymic epithelial tumors. LFA in addition to a mature adipocytic component, contains variable epithelial and mesenchymal tissue components...
2023: Mediastinum
https://read.qxmd.com/read/37261095/intralesional-microbleeding-in-resected-thymic-cysts-indeterminate-on-imaging
#17
JOURNAL ARTICLE
Julian A Villalba, Adina Haramati, Michelle Garlin, Fabiola Reyes, Cameron D Wright, Abner Louissaint, Jeanne B Ackman
BACKGROUND: The propensity of thymic cysts to mimic solid thymic epithelial tumors (TETs) on computed tomography (CT), on account of attenuation values greater than water and thickened or calcified walls, can lead to non-therapeutic thymectomy. These lesions can fluctuate in volume, CT attenuation, and magnetic resonance imaging (MRI) signal over time. We hypothesized that spontaneous hemorrhage and resorption may contribute to their variable appearance over time. METHODS: Completely excised thymic cysts were identified retrospectively over a 20-year period by their pathologic diagnosis...
2023: Mediastinum
https://read.qxmd.com/read/37229516/giant-multilocular-cystic-metaplastic-thymoma-a-case-report
#18
Lihua Han, Bo Gao, En-Hua Wang, Liang Wang
The metaplastic thymoma with giant multilocular-cyst formation had not been documented. The metaplastic thymoma is an extremely rare primary thymic epithelial tumor with an indolent clinical course. It is characterized by a histologic biphasic appearance, which is consisted of solid epithelial areas and spindle cells as the background. This specific pattern can be easily mistaken as the type A thymoma or the type A components of type AB thymoma. When cystic change occurs in metaplastic thymoma, it will bring more challenges for both imaging and pathological diagnosis...
2023: Pharmacogenomics and Personalized Medicine
https://read.qxmd.com/read/37149223/thymic-parenchymal-hyperplasia
#19
JOURNAL ARTICLE
David Suster, Natali Ronen, Douglas C Pierce, Saul Suster
Thymic hyperplasia is a rare condition generally caused by lymphoid follicular hyperplasia associated with autoimmune disorders. True thymic parenchymal hyperplasia unassociated with lymphoid follicular hyperplasia is extremely rare and may give rise to difficulties in diagnosis. We have studied 44 patients with true thymic hyperplasia (38 females and 6 males) aged 7 months to 64 years (mean, 36 years). Eighteen patients presented with symptoms of chest discomfort or shortness of breath; in 20 patients, the lesions were discovered incidentally...
August 2023: Modern Pathology
https://read.qxmd.com/read/37127616/cine-mr-feature-tracking-analysis-for-diagnosing-thymic-epithelial-tumors-a-feasibility-study
#20
JOURNAL ARTICLE
Koji Takumi, Hiroaki Nagano, Akie Mukai, Kazuhiro Ueda, Kazuhiro Tabata, Takashi Yoshiura
BACKGROUND: To assess the feasibility of the cine MR feature tracking technique for the evaluation of cardiovascular-induced morphological deformation in the diagnosis of thymic epithelial tumors (TETs). METHODS: Our study population consisted of 43 patients with pathologically proven TETs including 10 low-grade thymomas, 23 high-grade thymomas, and 10 thymic carcinomas. Cine MR images were acquired using a balanced steady-state free precession sequence with short periods of breath-hold in the axial and oblique planes in the slice with the largest lesion cross-sectional area...
May 1, 2023: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
keyword
keyword
171265
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.