Imaging features of sinonasal tumors on positron emission tomography and magnetic resonance imaging including diffusion weighted imaging: A pictorial review

Öztürk, Kerem; Gawande, Rakhee; Gencturk, Mehmet; Boegel, Kevin H.; Caicedo-Granados, Emiro; Cayci, Zuzan

doi:10.1016/j.clinimag.2018.05.018

Cited by 15 publications

(12 citation statements)

References 57 publications

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“…Our study showed just similar general MRI features. Still this retrospective review selected the lesions with striated pattern on T2 and post-contrast T1 images [26][27][28][29]. Though Yousem et al [30] stated that no signature pattern of MR imaging is specific of IP, later studies by Barnes et al…”

Section: Discussionmentioning

confidence: 99%

Imaging of sino-nasal inverted papilloma: How can we emphasize the usefulness of the “striated pattern” sign?

Eid

Eissa

2020

Egypt J Radiol Nucl Med

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Background: Inverted papilloma (IP) is an uncommon sino-nasal neoplasm with potentially distinctive MRI and CT features. The MR "striated" imaging pattern has been reported as a valuable MR imaging feature of IP. The purpose of this study was to validate the usefulness of this sign using detailed criteria of the sign itself. Results: All imaging findings were described for 16 patients in descriptive pattern. The nasal involvement showed highest prevalence followed by the maxillary sinus. The bony changes include remodeling and defects (n = 6), remodeling only (n = 4), and None (n = 6). Changes were severe 1/10, moderate in 3/10, and mild 5/10. Focal hyperostosis was seen in six. A striated pattern was "diffuse" in all 16 (100%) of the IPs; it followed a certain direction in all 16 patients: divergent (n = 6), convoluted (n = 2), and parallel (n = 8). Divergent growth from focal hyperostosis was seen (n = 4). Visibility of the sign was superior in T2 images (n = 11), superior in enhanced images (n = 3), and equal in both (n = 2). Conclusions: The striated pattern is a reliable MR imaging feature of sino-nasal IPs. Validity and usefulness of this sign can be emphasized by defining parameters of the signs itself including the following: diffusivity, direction of striations and relation to hyperostosis, and comparing visibility in both T2 and GAD-enhanced images, as well as combining this imaging signature with remolding bony changes < 1.5.

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Section: Discussionmentioning

confidence: 99%

Imaging of sino-nasal inverted papilloma: How can we emphasize the usefulness of the “striated pattern” sign?

Eid

Eissa

2020

Egypt J Radiol Nucl Med

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“…Accurate staging, including the identification of locoregional recurrence, and distant metastasis, is needed for treatment planning and prognostic stratification . Because sinonasal malignancies are infrequent, have high histological variability, and poor survival, a more appropriate prognostic method integrating all tumor characteristics, including biological information, is thus of great interest …”

Section: Introductionmentioning

confidence: 99%

“…2,3 Accurate staging, including the identification of locoregional recurrence, and distant metastasis, is needed for treatment planning 4 and prognostic stratification. 5,6 Because sinonasal malignancies are infrequent, have high histological variability, 7 and poor survival, a more appropriate prognostic method integrating all tumor characteristics, including biological information, is thus of great interest. 8,9 Over the past decade, 18 F-fluoro-deoxy-glucose positron emission/CT ( 18 F-FDG PET/CT) and MRI have largely been used for staging-restaging, 10,11 and assessment of treatment response in sinonasal malignancies.…”

Section: Introductionmentioning

confidence: 99%

Prediction of survival with combining quantitative ¹⁸F‐FDG PET/CT and DW‐MRI parameters in sinonasal malignancies

et al. 2019

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Background We aimed to establish the prognostic value of 18F‐fluoro‐deoxy‐glucose positron emission/CT (18F‐FDG PET/CT) and diffusion‐weighted (DW) MRI in determining overall survival (OS), progression‐free survival (PFS), and distant metastasis‐free survival (DMFS) of sinonasal malignancies. Methods Sixty‐eight patients with sinonasal cancer who underwent both pretreatment 18F‐FDG PET/CT scan and head‐neck MRI from January 2009 through August 2017 were retrospectively reviewed. Kaplan‐Meier survival analysis of 18F‐FDG PET/CT and DW‐MRI parameters were performed for OS, PFS, and DMFS. Results Cox regression analysis determined that all the quantitative 18F‐FDG PET/CT and DW‐MRI parameters were independently correlated with PFS, DMFS, and OS (P < .05). After controlling for imaging variables, perineural invasion (P = .02) and ill‐defined margin (P = .02) were found to be significantly correlated with shorter OS; while the perineural invasion was significantly correlated with shorter PFS (P = .02). Conclusions The pretreatment DW‐MRI and 18F‐FDG PET/CT parameters could be substantial surrogate markers for sinonasal malignancies.

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“…Undifferentiated carcinoma usually exhibits heterogeneous enhancement on contrast-enhanced T1WI. [15][16][17][18] Dualenergy CT can simultaneously provide morphological and functional information from studied tissues after the intravenous administration of iodine contrast agent, improving diagnosis and differential diagnosis capabilities. At present, there are no reports on DECT of SN-EMPs.…”

Section: Discussionmentioning

confidence: 99%

Extramedullary Plasmacytoma of the Sinonasal Cavity: Magnetic Resonance Imaging Characteristics With Readout-Segmented Diffusion-Weighted Imaging and Dual-Energy Computed Tomography Features

Duan

Wang

et al. 2022

J Comput Assist Tomogr

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Purpose: To determine magnetic resonance imaging (MRI) with readoutsegmented diffusion-weighted imaging (RESOLVE-DWI) and dual-energy computed tomography (DECT) features of sinonasal extramedullary plasmacytoma (SN-EMP). Methods:The MRI and/or DECT of 10 patients with SN-EMP confirmed by pathology were retrospectively reviewed. Apparent diffusion coefficient (ADC) values of RESOLVE-DWI were analyzed in 9 patients. The quantitative parameters derived from DECT, including the iodine concentration (IC), effective atomic number, and the slope (k) of spectral attenuation curve, were measured in 3 patients.Results: On conventional MRI, typical lesions were well defined (7 of 9), and isointense to the brain on both T1WI and T2WI (9 of 9). Most lesions presented with marked enhancement on contrast-enhanced T1WI without significant necrosis (8 of 9). Notably, multiple flow-void signals were observed in all lesions (9 of 9). On RESOLVE-DWI, the average ADC value was 0.55 Â 10 −3 mm 2 /s, and the normalized ADC value was 0.66 ± 0.04. On DECT, the average values of IC, effective atomic number, and slope (k) was 2.7 mg/mL, 8.62, and 3.8, respectively.Conclusions: Some typical MRI features (well-defined mass, isointensity to the brain, marked enhancement without obvious cystic changes, multiple flow voids, and a lower ADC value) strongly suggest the diagnosis of SN-EMP. The quantitative parameters derived from RESOLVE-DWI and DECT may provide more information for the diagnosis of SN-EMP.

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Imaging features of sinonasal tumors on positron emission tomography and magnetic resonance imaging including diffusion weighted imaging: A pictorial review

Cited by 15 publications

References 57 publications

Imaging of sino-nasal inverted papilloma: How can we emphasize the usefulness of the “striated pattern” sign?

Imaging of sino-nasal inverted papilloma: How can we emphasize the usefulness of the “striated pattern” sign?

Prediction of survival with combining quantitative ¹⁸F‐FDG PET/CT and DW‐MRI parameters in sinonasal malignancies

Extramedullary Plasmacytoma of the Sinonasal Cavity: Magnetic Resonance Imaging Characteristics With Readout-Segmented Diffusion-Weighted Imaging and Dual-Energy Computed Tomography Features

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Imaging features of sinonasal tumors on positron emission tomography and magnetic resonance imaging including diffusion weighted imaging: A pictorial review

Cited by 15 publications

References 57 publications

Imaging of sino-nasal inverted papilloma: How can we emphasize the usefulness of the “striated pattern” sign?

Imaging of sino-nasal inverted papilloma: How can we emphasize the usefulness of the “striated pattern” sign?

Prediction of survival with combining quantitative 18F‐FDG PET/CT and DW‐MRI parameters in sinonasal malignancies

Extramedullary Plasmacytoma of the Sinonasal Cavity: Magnetic Resonance Imaging Characteristics With Readout-Segmented Diffusion-Weighted Imaging and Dual-Energy Computed Tomography Features

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Prediction of survival with combining quantitative ¹⁸F‐FDG PET/CT and DW‐MRI parameters in sinonasal malignancies