{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T20:58:13Z","timestamp":1790974693011,"version":"4.1.0"},"reference-count":66,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2023,5,10]],"date-time":"2023-05-10T00:00:00Z","timestamp":1683676800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Neuroimaging"],"published-print":{"date-parts":[[2023,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Purpose<\/jats:title><jats:p>To comprehensively summarize the radiological characteristics of sinonasal tract angiofibroma (STA) (commonly known as juvenile nasopharyngeal angiofibroma).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Forty\u2010four lesions from 41 cases provided by 33 study articles identified through a systematic review and 13 lesions from 13 cases from our institution associated with patients with STA who underwent MRI were included in the review study, carried out by two board\u2010certified experienced radiologists.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The study participants were all male patients with a mean age of 15.6\u00a0years at the time of diagnosis. All of them presented with nasal cavity lesions (100%), predominantly in the nasopharynx (98.2%). The sphenopalatine foramen\/pterygopalatine fossa was involved in 76.0%, and compressive shift of the posterolateral wall of the maxillary sinus was present in more than half (57.9%). T2\u2010weighted imaging signal intensity was heterogeneous with mixed high and iso intensities as compared to skeletal muscle (100%). T1\u2010weighted imaging showed partial high signal intensity in 61.1% of the cases. Flow void and intense enhancement were present in almost all cases. Cystic\/nonenhancement changes on contrast\u2010enhanced MRI were relatively common (40.8%). The mean apparent diffusion coefficient value (2.07\u00a0\u00d7\u00a010<jats:sup>\u22123<\/jats:sup>\u00a0mm<jats:sup>2<\/jats:sup>\/second) and some quantitative dynamic contrast\u2010enhanced MRI parameters were high. There was a significant difference in the frequency of residual\/recurrent lesions based on the presence of MRI findings of skull base invasion (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.017) and intracranial extension (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.003).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>We summarized the MRI findings of STA that can facilitate timely diagnosis and appropriate management.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jon.13116","type":"journal-article","created":{"date-parts":[[2023,5,11]],"date-time":"2023-05-11T05:36:11Z","timestamp":1683783371000},"page":"675-687","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["MRI features of sinonasal tract angiofibroma\/juvenile nasopharyngeal angiofibroma: Case series and systematic 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