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Thymic epithelial tumor MR CT

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https://www.readbyqxmd.com/read/29613961/mr-imaging-of-thymic-epithelial-neoplasms
#1
REVIEW
Brett W Carter, John P Lichtenberger, Marcelo F Benveniste
Thymic epithelial neoplasms are malignant lesions that originate from the thymus and include thymoma, thymic carcinoma, and thymic neuroendocrine tumors. Although computed tomography (CT) is typically considered the imaging modality of choice for identifying thymic tumors, characterizing the primary neoplasm, and staging of disease, the role of magnetic resonance (MR) imaging continues to expand. MR imaging is effective in distinguishing thymic epithelial neoplasms and other malignant tumors from benign lesions in the prevascular mediastinum, can be used to characterize and stage thymic tumors in those patients with contraindications to contrast-enhanced CT, and can reveal morphologic features of thymic tumors...
April 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/28777164/mr-imaging-of-mediastinal-masses
#2
REVIEW
Brett W Carter, Sonia L Betancourt, Marcelo F Benveniste
The mediastinum contains vital vascular and nonvascular structures and organs, and a wide variety of abnormalities may arise from this region of the thorax. Although mediastinal masses may be initially detected on chest radiography, cross-sectional imaging plays an important role in the identification and evaluation of mediastinal lesions, enabling the formulation of focused differential diagnoses and ultimately guiding management. Computed tomography (CT) is considered the imaging modality of choice for evaluating most mediastinal masses; however, the role of magnetic resonance (MR) imaging continues to expand, as it is superior to CT in differentiating between cystic and solid masses, identifying cystic and solid components within complex lesions, and distinguishing thymic hyperplasia and normal thymus from thymic epithelial neoplasms and other neoplasms...
August 2017: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/25952513/state-of-the-art-mr-imaging-of-thymoma
#3
REVIEW
Brett W Carter, Marcelo F K Benveniste, Mylene T Truong, Edith M Marom
Thymoma is the most common primary malignancy of the anterior mediastinum and the most common thymic epithelial neoplasm, but it is a rare tumor that constitutes less than 1% of adult malignancies. Computed tomography (CT) is currently the imaging modality of choice for distinguishing thymoma from other anterior mediastinal masses, characterizing the primary tumor, and staging the disease. However, magnetic resonance imaging is also effective in evaluating and characterizing anterior mediastinal masses and staging thymoma in patients with contraindications to contrast-material-enhanced CT such as contrast allergy and/or renal failure...
May 2015: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/21105138/computed-tomography-and-magnetic-resonance-imaging-of-mediastinal-tumors
#4
REVIEW
Koji Takahashi, Nabaa Jaba Al-Janabi
We describe the clinical, pathological, and imaging findings of mediastinal tumors with focus on thymic hyperplasia, thymic epithelial tumors, and germ cell tumors, malignant lymphoma, and various cystic masses. Chemical shift magnetic resonance imaging (MRI) is useful in characterization of the normal thymus and differentiation of hyperplastic thymus and thymic tumors. In contrast to noninvasive thymomas, invasive thymomas and thymic carcinomas show a more aggressive growth pattern. Local invasion and pleural spread are characteristic of invasive thymoma and mediastinal lymphadenopathy and distant metastasis suggest thymic carcinomas...
December 2010: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/16766154/thymic-epithelial-tumors-comparison-of-ct-and-mr-imaging-findings-of-low-risk-thymomas-high-risk-thymomas-and-thymic-carcinomas
#5
COMPARATIVE STUDY
Junko Sadohara, Kiminori Fujimoto, Nestor L Müller, Seiya Kato, Shinzo Takamori, Kazuaki Ohkuma, Hiroshi Terasaki, Naofumi Hayabuchi
OBJECTIVE: To assess the CT and magnetic resonance (MR) imaging findings of thymic epithelial tumors classified according to the current World Health Organization (WHO) histologic classification and to determine useful findings in differentiating the main subtypes. MATERIALS AND METHODS: Sixty patients with thymic epithelial tumor who underwent both CT and MR imaging were reviewed retrospectively. All cases were classified according to the 2004 WHO classification...
October 2006: European Journal of Radiology
https://www.readbyqxmd.com/read/15019849/-management-of-thymic-cysts
#6
M Rahmati, P Corbi, H Gibelin, C Jayle, M Abdou, S Milinkevitch, P Menu, J L Kraimps
OBJECTIVE: The thymic cysts are rare tumors of the neck and anterior mediastinum. The management of these patients in our institution is reported. Minimally invasive procedures are discussed. PATIENTS AND METHODS: Six patients operated in our institution within ten years, with a follow-up of 7.1 +/-3.7 years are studied retrospectively. RESULTS: There were four women and two men with an average of 39.8 +/-16.5 years. The tumor was found on chest radiograph in four asymptomatic patients, one took medical advice for laryngeal discomfort and another for dysphagia and dyspnea...
February 2004: Annales de Chirurgie
https://www.readbyqxmd.com/read/12679634/thymic-epithelial-tumors-classified-according-to-a-newly-established-who-scheme-ct-and-mr-findings
#7
Joungho Han, Kyung Soo Lee, Chin A Yi, Tae Sung Kim, Young Mog Shim, Jhingook Kim, Kwhanmien Kim, O Jung Kwon
Thymic epithelial tumor is a distinctive pathologic entity exhibiting variable histologic features and heterogeneous oncologic behavior. Among the various classification systems, that of the World Health Organization has been adopted because of good correlation between histologic appearance and oncologic behavior. Radiologically, a smooth contour and round shape are most suggestive of a type-A tumor, whereas an irregular contour most strongly suggests type C. Pleural seeding is rare in type-A and AB tumors; calcification is suggestive of type B...
January 2003: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
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