{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T13:29:59Z","timestamp":1786714199981,"version":"build-2736575974"},"reference-count":17,"publisher":"BMJ","issue":"8","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2026,8,4]]},"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:p>We describe a case of sinonasal glomangiopericytoma (GPC), a rare perivascular tumour accounting for less than 0.5% of sinonasal neoplasms, presenting with refractory unilateral epistaxis. An anticoagulated male in his 60s required admission, nasal packing and unilateral left internal maxillary artery embolisation to achieve haemostasis.<\/jats:p>\n                  <jats:p>Following stabilisation, nasoendoscopy identified a vascular polypoid lesion arising high in the left nasal cavity near the olfactory cleft. MRI demonstrated a contrast-enhancing mass abutting the cribriform plate without orbital or skull-base invasion, which had not been recognised on prior imaging. Endoscopic biopsy confirmed GPC, followed by endoscopic resection at a tertiary skull-base centre.<\/jats:p>\n                  <jats:p>Postoperative recovery was uncomplicated, with early resolution of epistaxis and safe recommencement of anticoagulation. However, the tumour was transected at the surgical margin, indicating incomplete or margin-uncertain excision and requiring close surveillance for residual or recurrent disease. This case highlights a rare cause of refractory unilateral epistaxis and illustrates the importance of diagnostic vigilance, multidisciplinary management and the potential role of embolisation in selected high-risk patients.<\/jats:p>","DOI":"10.1136\/bcr-2026-272482","type":"journal-article","created":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T12:40:19Z","timestamp":1786711219000},"page":"e272482","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Sinonasal glomangiopericytoma presenting as refractory epistaxis: imaging, embolisation and pathological correlation"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-5967-0465","authenticated-orcid":false,"given":"Aubrey","family":"Gaylard","sequence":"first","affiliation":[{"name":"Department of Ear, Nose and Throat Surgery, Royal Darwin Hospital, Tiwi, Northern Territory, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sophia","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Ear, Nose and Throat Surgery, Royal Darwin Hospital, Tiwi, Northern Territory, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vicki","family":"Pretorius","sequence":"additional","affiliation":[{"name":"Anatomical Pathology, Royal Darwin Hospital, Tiwi, Northern Territory, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suresh","family":"Mahendran","sequence":"additional","affiliation":[{"name":"Department of Ear, Nose and Throat Surgery, Royal Darwin Hospital, Tiwi, Northern Territory, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,8,14]]},"reference":[{"key":"2026081405400962000_19.8.e272482.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prp.2019.02.004"},{"key":"2026081405400962000_19.8.e272482.2","doi-asserted-by":"publisher","DOI":"10.1038\/modpathol.2014.161"},{"key":"2026081405400962000_19.8.e272482.3","doi-asserted-by":"publisher","DOI":"10.1007\/s12105-018-0961-z"},{"key":"2026081405400962000_19.8.e272482.4","doi-asserted-by":"crossref","DOI":"10.1136\/bcr-2023-256787","article-title":"Glomangiopericytoma with CTNNB1 mutation","volume":"16","author":"Iwata","year":"2023","journal-title":"BMJ Case Reports CP"},{"key":"2026081405400962000_19.8.e272482.5","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A6336"},{"key":"2026081405400962000_19.8.e272482.6","doi-asserted-by":"crossref","first-page":"651","DOI":"10.3329\/bjms.v18i3.41644","article-title":"Sinonasal Glomangiopericytoma: A Case Report and Literature Review","volume":"18","author":"Min","year":"2019","journal-title":"Bangladesh J Med Sci"},{"key":"2026081405400962000_19.8.e272482.7","first-page":"593","article-title":"Sinonasal Glomangiopericytoma: Review of Imaging Appearance and Clinical Management Update for a Rare Sinonasal Neoplasm","volume":"94","author":"Al-Jobory","year":"2021","journal-title":"Yale J Biol Med"},{"key":"2026081405400962000_19.8.e272482.8","doi-asserted-by":"crossref","DOI":"10.1101\/mcs.a006120","article-title":"PIK3CA mutation in a case of CTNNB1-mutant sinonasal glomangiopericytoma","volume":"8","author":"Hong","year":"2022","journal-title":"Molecular Case Studies"},{"key":"2026081405400962000_19.8.e272482.9","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1007\/s11912-024-01506-9","article-title":"Integrated Molecular and Histological Insights for Targeted Therapies in Mesenchymal Sinonasal Tract Tumors","volume":"26","author":"Hoch","year":"2024","journal-title":"Curr Oncol Rep"},{"key":"2026081405400962000_19.8.e272482.10","doi-asserted-by":"publisher","DOI":"10.1016\/j.cell.2012.05.012"},{"key":"2026081405400962000_19.8.e272482.11","doi-asserted-by":"crossref","DOI":"10.4322\/acr.2023.424","article-title":"Clinical and histopathological findings of a rare sinonasal glomangiopericytoma","volume":"13","author":"Moussaoui","year":"2023","journal-title":"Autops Case Rep"},{"key":"2026081405400962000_19.8.e272482.12","doi-asserted-by":"crossref","first-page":"334","DOI":"10.51253\/pafmj.v72i1.3774","article-title":"Sinonasal Glomangiopericytoma - 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