Fibrosing mediastinitis mimicking malignancy at CT: negative FDG uptake in integrated FDG PET/CT imaging.

Published on May 9, 2007in European Radiology4.101
· DOI :10.1007/S00330-006-0402-3
Semin Chong1
Estimated H-index: 1
(SKKU: Sungkyunkwan University),
Taesung Kim39
Estimated H-index: 39
(SKKU: Sungkyunkwan University)
+ 1 AuthorsEun Yoon Cho23
Estimated H-index: 23
(SKKU: Sungkyunkwan University)
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Abstract
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Whole-body serial positron emission tomography scanning was done using fluorine-18 fluorodeoxygluclose (F-18 FDG) in a patient with a mediastinal mass. Uptake correlated well with the clinical symptoms and aggressiveness of the disease. Based on the F-18 FDG findings, a biopsy specimen was taken from the active region of the mass, which confirmed the diagnosis of sclerosing mediastinitis.
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Abstract The clinicopathologic and immunohistochemical findings in 30 cases of idiopathic fibroinflammatory lesions of the mediastinum are presented. There were 17 male and 13 female patients between 10 and 64 years of age; 19 were African-American, and 10 were Caucasian. Clinically, respiratory and/or systemic symptoms including cough, shortness of breath, and fever were present in 28 patients. Five patients also presented with evidence of superior vena cava syndrome. All of the lesions involve...
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: Mediastinal fibrosis, the most serious late complication of remote infection by Histoplasma capsulatum, is a thick, dense fibrotic capsule which surrounds a small mediastinal focus of old caseous adenitis. The fibrotic process may accrue over prolonged periods and extend within the lumina of critical mediastinal structures to produce complete occlusion. We summarized clinical and radiographic data for 71 patients with mediastinal fibrosis; the criteria for inclusion were the clinical demonstra...
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Diffuse lymphadenopathy has a long differential diagnosis that includes both malignant and benign causes. As part of the lymphadenopathy work-up, many patients undergo [18F]FDG-PET/CT for purposes of ruling out malignancy. FDG-avid lymph nodes, however, are not specific for malignancy. This review will illustrate the spectrum of nodal findings on FDG-PET/CT with correlation to other cross-sectional imaging and clinical history in patients with representative infectious, inflammatory, and benign ...
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#1Hee Kang (Kosin University Gospel Hospital)
#2Min Jung Jung (Kosin University Gospel Hospital)
Abstract Fibrosing mediastinitis is an uncommon benign disorder in which a chronic inflammatory reaction results in diffuse fibrosis of the mediastinum, potentially compromising the airways, great vessels and other mediastinal structures. Herein we describe a progressive course of fibrosing mediastinitis in a 72-year-old man. Computed tomography images depicted a diffuse, infiltrative, soft tissue mass involving the esophagus and superior vena cava in the mediastinum. Magnetic resonance imaging ...
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Fibrosing mediastinitis (FM) is a rare disease where there is thickening of the fibrous tissue in the mediastinum. While histoplasmosis is the the most common recognised cause, the link with tuberculosis (TB) has been rarely documented. We review the link between TB and FM, and describe a case of probable TB-related FM.Our case is of a 74-year-old man who presented with breathlessness 3 years after fully treated TB. Scans revealed a calcified soft tissue mass within the mediastinum, and a diagno...
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Hintergrund Die chronische Mediastinitis ist eine seltene Erkrankung, welche durch fortschreitende Proliferation fibrosen Gewebes im Mediastinum eine Kompression mediastinaler Strukturen verursacht.
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OBJECTIVE. The purpose of this article is to review and illustrate the pathogenesis, natural history, imaging features, and treatment of granulomatous fibrosing mediastinitis. CONCLUSION. Granulomatous fibrosing mediastinitis is an infiltrative disorder characterized by encasement of the mediastinal viscera; in most cases in the United States, it represents an idiosyncratic immune response to histoplasma. Familiarity with the various imaging features of fibrosing mediastinitis is important for p...
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Fibrosing mediastinitis (FM) is a rare disorder characterized by the invasive proliferation of fibrous tissue within the mediastinum. FM frequently results in the compression of vital mediastinal structures and has been associated with substantial morbidity and mortality. Its pathogenesis remains unknown. However, in North America most cases are thought to represent an immune-mediated hypersensitivity response to Histoplasma capsulatum infection. To characterize the clinical disease spectrum, na...
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Sclerosing mediastinitis is a rare, benign disorder that is often indistinguishable from malignancy by conventional imaging techniques. The value of fluorodeoxyglucose positron emission tomography (FDG-PET) imaging in the diagnosis of this disorder has not been elucidated. Recently, a few studies have reported the use of dual-phase FDG-PET imaging in the diagnosis of malignancies. The dual phase contains early- and late- phase images. The maximum standard uptake value (SUVmax) of late phase imag...
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Mediastinal fibrosis is a rare, benign disorder characterised by proliferation of fibrous tissue within the mediastinum. It can present as diffuse mediastinal infiltration or, more frequently, as a localised soft tissue mass, usually in the right paratracheal or subcarinal areas. 18-fluorodeoxyglucose (18-FDG) positron emission tomography (PET) imaging has only been reported in a few case reports with variable aspects. Herein, we present an unusual pattern of mediastinal fibrosis, presenting as ...
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