Burkitt-like lymphoma of the brain mimicking an intraventricular colloid cyst

Queiroz, Rodolfo Mendes; Abud, Lucas Giansante; Abud, Thiago Giansante; Miyake, Cecília Hissae; Santos, Antônio Carlos dos

doi:10.1590/0100-3984.2016.0065

Cited by 11 publications

(9 citation statements)

References 15 publications

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“…Anatomical imaging techniques such as ultrasound, contrast-enhanced computed tomography, and contrast-enhanced magnetic resonance imaging (MRI) are capable of detecting enlarged lymph nodes ( 5 - 8 ) , particularly in the cervical chains. However, such techniques are less sensitive for identifying malignancy in some cases ( 9 ) .…”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging: dynamic contrast enhancement and diffusion-weighted imaging to identify malignant cervical lymph nodes

et al. 2018

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ObjectiveTo examine the potential of two magnetic resonance imaging (MRI) techniques-dynamic contrast enhancement (DCE) and diffusion-weighted imaging (DWI)-for the detection of malignant cervical lymph nodes.Materials and MethodsUsing DCE and DWI, we evaluated 33 cervical lymph nodes. For the DCE technique, the maximum relative enhancement, relative enhancement, time to peak enhancement, wash-in rate, wash-out rate, brevity of enhancement, and area under the curve were calculated from a semi-quantitative analysis. For the DWI technique, apparent diffusion coefficients (ADCs) were acquired in the region of interest of each lymph node. Cystic or necrotic parts were excluded. All patients underwent neck dissection or node biopsy. Imaging results were correlated with the histopathological findings. None of the patients underwent neoadjuvant treatment before neck dissection.ResultsRelative enhancement, maximum relative enhancement, and the wash-in rate were significantly higher in malignant lymph nodes than in benign lymph nodes (p < 0.009; p < 0.05; and p < 0.03, respectively). The time to peak enhancement was significantly shorter in the malignant lymph nodes (p < 0.02). In the multivariate analysis, the variables identified as being the most capable of distinguishing between benign and malignant lymph nodes were time to peak enhancement (sensitivity, 73.7%; specificity, 69.2%) and relative enhancement (sensitivity, 89.2%; specificity, 69.2%).ConclusionAlthough DCE was able to differentiate between benign and malignant lymph nodes, there is still no consensus regarding the use of a semi-quantitative analysis, which is difficult to apply in a clinical setting. Low ADCs can predict metastatic disease, although inflammatory processes might lead to false-positive results.

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Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging: dynamic contrast enhancement and diffusion-weighted imaging to identify malignant cervical lymph nodes

et al. 2018

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“…Expansile lesions in the nervous system have been the subject of recent studies in the radiology literature of Brazil (6)(7)(8)(9)(10) . On magnetic resonance imaging, they are typically solitary, circumscribed, solid-microcystic, intraventricular, and exophytic (2,4,5) .…”

Section: Letters To the Editormentioning

confidence: 99%

Infiltrative subependymoma of the brainstem: an uncommon presentation

et al. 2019

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“…Several studies recently conducted in Brazil have emphasized the importance of imaging in the evaluation of brain tumors ( 1 - 3 ) . Glioma accounts for approximately 40% of central nervous system tumors and 70% of malignant brain tumors ( 4 ) .…”

Section: Introductionmentioning

confidence: 99%