Imaging Conference Cases
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- Imaging Conference Cases
- 23. KSTR Imaging Conference 2006 Spring
Discussion
Diagnosis With Brief Discussion
- Courtesy
- S
- Definitive Diagnosis
- Mediastinoscopic biopsy
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- Imaging Findings
????????????Diffuse infiltrating soft tissue lesion
- All compartment of the mediastinum
- Obliterates normal mediastinal fat planes
- Encases or encoarch adjacent structure
- Reviewy
????????????????????Etiology:
- Idiopathic
- Granulomatous infection: Histoplasma capsulatum
- Localized, calcified mass in the paratracheal or subcarinal regions of the mediastinum or pulmonary hila
- Diffuse infiltrating, non-calcified mass
- Affects multiple mediastinal compartments
- Extensive calcified, infiltrative mediastinal mass
- Young patients, Endemic area for histoplasmosis
- DDx: Lung cancer, Metastatic carcinoma, Lymphoma, Mediastinal sarcoma, Mediastinal desmoid tumor
- Spontaneous remission or Exacerbation
- Mortality rate: 30%
- Subcarinal or bilateral mediastinal involvement : much higher motality
- Keywords
- Mediastinum, Non-infectious inflammation, Fibrosing Mediastinitis, Diffuse Type
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????????????Affected patients: typically young
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????????????Two types
????????????????Focal type(82%):
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????????????????Diffuse type(18%):
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????????????Fibrosing mediastinitis is the most likely diagnosis
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????????????Differential diagnosis
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????????????Treatment and prognosis: unpredictable course
????????????????????????????????????????????????????????????????????????????????????(RadioGraphics 2001; 21:737-757)
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