A Potential Diagnostic Pitfall in the Differentiation of Hemorrhagic and Fatty Lesions Using Short Inversion Time Inversion Recovery: a Case Report

Kim, Jee Hye; Kang, Woo Young; Cho, Bum Sang; Yi, Kyung Sik

doi:10.13104/imri.2016.20.3.181

Cited by 1 publication

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“…The DWI signal intensity of the hemorrhagic component may be related to both its ADC value and magnetic susceptibility effect [ 32 ]. Moreover, fat suppression is not tissue-specific but depends on the T1 relaxation time on STIR images [ 33 ]. Hemorrhagic content may have a short T1 relaxation time similar to that of fat and show a signal decrease in STIR [ 33 ].…”

Section: Pitfalls and Special Consideration On Mr Evaluation For The ...mentioning

confidence: 99%

“…Moreover, fat suppression is not tissue-specific but depends on the T1 relaxation time on STIR images [ 33 ]. Hemorrhagic content may have a short T1 relaxation time similar to that of fat and show a signal decrease in STIR [ 33 ]. Moreover, sometimes ADC alone is not sufficient to differentiate non-neoplastic cystic lesions from indeterminate tumors.…”

Section: Pitfalls and Special Consideration On Mr Evaluation For The ...mentioning

confidence: 99%

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MRI-Based Stepwise Approach to Anterior Mediastinal Cystic Lesions for Diagnosis and Further Management

et al. 2023

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As the majority of incidentally detected lesions in the anterior mediastinum is small nodules with soft tissue appearance, the differential diagnosis has typically included thymic neoplasm and prevascular lymph node, with benign cyst. Overestimation or misinterpretation of these lesions can lead to unnecessary surgery for ultimately benign conditions. nonsurgical anterior mediastinal lesions. The pitfalls of MRI evaluation for anterior mediastinal cystic lesions are as follows: first, we acknowledge the limitation of T2-weighted images for evaluating benign cystic lesions. Due to variable contents within benign cystic lesions, such as hemorrhage, T2 signal intensity may be variable. Second, owing to extensive necrosis and cystic changes, the T2 shine-through effect may be seen on diffusion-weighted images (DWI), and small solid portions might be missed on enhanced images. Therefore, both enhancement and DWI with apparent diffusion coefficient values should be considered. An algorithm will be suggested for the diagnostic evaluation of anterior mediastinal cystic lesions, and finally, a management strategy based on MRI features will be suggested.

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Section: Pitfalls and Special Consideration On Mr Evaluation For The ...mentioning

confidence: 99%

Section: Pitfalls and Special Consideration On Mr Evaluation For The ...mentioning

confidence: 99%

MRI-Based Stepwise Approach to Anterior Mediastinal Cystic Lesions for Diagnosis and Further Management

et al. 2023

View full text Add to dashboard Cite

show abstract

A Potential Diagnostic Pitfall in the Differentiation of Hemorrhagic and Fatty Lesions Using Short Inversion Time Inversion Recovery: a Case Report

Cited by 1 publication

References 7 publications

MRI-Based Stepwise Approach to Anterior Mediastinal Cystic Lesions for Diagnosis and Further Management

MRI-Based Stepwise Approach to Anterior Mediastinal Cystic Lesions for Diagnosis and Further Management

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