Magnetic Resonance Imaging in Sinonasal Disease

Betts, Aaron M.; Cornelius, Rebecca S.

doi:10.1097/rmr.0000000000000043

Cited by 5 publications

(6 citation statements)

References 52 publications

(95 reference statements)

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“…As an imaging modality, MRI can aid radiologists in making a more accurate differential diagnosis and enhance the clinical management of patients. 10 …”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging study of incidental findings in the paranasal sinuses and ostiomeatal complex

et al. 2022

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Purpose This study aimed to assess incidental abnormal findings in the paranasal sinuses and anatomical variations of the ostiomeatal complex (OMC) on magnetic resonance imaging (MRI) scans. Materials and Methods MRI scans of 616 patients (mean age, 44.0±19.4 years) were evaluated. Prior to obtaining the MRI scans, a checklist of patients’ clinical symptoms was filled out after obtaining their consent. The Lund-Mackay classification was used to assess the paranasal sinuses and OMC. The prevalence of abnormal findings and their associations with patients’ age, sex, and subjective symptoms were analyzed by the chi-square test, independent-sample t-test, and analysis of variance. The level of significance was set at 0.05. Results Abnormal findings in the paranasal sinuses were detected in 32.0% of patients, with a significantly higher prevalence in males ( P <0.05), but no significant association with age ( P >0.05). Epithelial thickening and retention cyst were the most common abnormal findings in the paranasal sinuses. According to the Lund-Mackay classification, 93% of the study population had normal sinuses (score<4). Concha bullosa and paradoxical concha were detected in 15.3% and 3.4%, respectively, with no significant association with the presence of septal deviation or Lund-Mackay classification ( P >0.05). Conclusion Considering the relatively high prevalence of abnormal findings in the paranasal sinuses, it appears that clinical symptoms alone are not sufficient to diagnose sinusitis. A more accurate strategy would be to assess radiographic images of the paranasal sinuses and use a classification system. Sinusitis should be suspected in patients receiving a high score in this classification.

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“…As an imaging modality, MRI can aid radiologists in making a more accurate differential diagnosis and enhance the clinical management of patients. 10 …”

Section: Introductionmentioning

confidence: 99%

Magnetic resonance imaging study of incidental findings in the paranasal sinuses and ostiomeatal complex

et al. 2022

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“…Furthermore, MRI allows detecting inflammatory sinus disease spread, such as intracranial, perineural or orbital complications [ 19 , 27 ]. Regarding to sinonasal inflammatory pathology, MRI is appropriate to the study of acute or subacute sinusitis with associated orbital or intracranial complications with neurologic deficit; acute or subacute sinusitis in immunodeficient patients, sinonasal obstruction or suspected mass lesions [ 19 ].…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, in cases of inflammatory diseases clinically detected with suspected symptoms, MRI should be the choice examination method, considering that MRI is an imaging examination which does not requires patient exposure to ionizing radiation [ 28 ]. However, the differentiation of sinonasal inflammatory lesions from neoplastic process is the main indication of MRI as a complementary tool to CT [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

Diffusion-Weighted Magnetic Resonance Imaging in Maxillary Sinuses Inflammatory Diseases: Report of Three Cases and Literature Review

Munhoz¹,

Júnior²,

Abdala³

et al. 2018

JOMR

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BackgroundMagnetic resonance imaging is considered a preferable imaging examination in the diagnosis of inflammatory maxillary sinus disease and can provide precise sinonasal characterization. Diffusion-weighted magnetic resonance imaging and apparent diffusion coefficient are complementary magnetic resonance imaging tools that can be applied to the differentiation of sinus diseases. In this report, 3 cases of inflammatory maxillary sinus diseases imaging findings considering diffusion-weighted magnetic resonance imaging features were described. Additionally, a literature review considering the use of diffusion-weighted magnetic resonance imaging in inflammatory lesions is provided.MethodsThe cases reported were: presence of air-fluid levels, mucosal thickening and a mucous retention cyst. Conventional magnetic resonance imaging and apparent diffusion coefficient (ADC) maps, with ADC values were demonstrated. In the literature review, the studies considering inflammatory lesions were detailed, as well as ADC values established by investigators.ResultsADC values for presence of air-fluid levels, mucosal thickening and mucous retention cyst were respectively: 1.99 x 10-3 mm2/s; 1.83 x 10-3 mm2/s; 2.05 x 10-3 mm2/s.ConclusionsIt was observed that apparent diffusion coefficient values from the inflammatory lesions described in this report were different and apparent diffusion coefficient may be useful in the differentiation of these maxillary sinus alterations. Further larger sample investigations considering apparent diffusion coefficient values focusing in inflammatory lesions are recommended. The lack of studies considering the use of diffusion-weighted magnetic resonance imaging on inflammatory diseases diagnostic was the major limitation to the literature review.

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“…Benign lesions include papilloma, respiratory epithelial adenomatoid hamartoma, pleomorphic adenoma, juvenile nasopharyngeal angiofibroma, nerve sheath tumor, and meningioma [7,8]. The most common sinonasal malignancy is squamous cell carcinoma, with other malignancies including sinonasal undifferentiated carcinoma, adenocarcinoma, lymphoma, neuroendocrine tumors, salivary gland tumors, and melanoma [7,10]. A meningoencephalocele may also present as a sinonasal mass.…”

Section: Variant 5: Suspected Sinonasal Mass Initial Imagingmentioning

confidence: 99%