{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T09:10:20Z","timestamp":1756372220229,"version":"3.44.0"},"reference-count":8,"publisher":"BMJ","issue":"11","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,9,12]]},"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:p>A late adolescent patient was admitted after a collapse and was found to have an intracranial haemorrhage due to an underlying midline arteriovenous malformation (AVM). The patient underwent trans-arterial squid embolisation of the AVM with good radiological resolution. 18 months later, the patient presented with new onset headaches. Cranial imaging demonstrated an enhancing lesion at the site of the previously thrombosed AVM in the corpus callosum. This was deemed to be a foreign body granuloma, a rare complication of intravascular embolisation of AVMs. The patient continued to have periodic imaging with subsequent scans demonstrating progressive changes in the granuloma and this was then resected surgically. We describe the natural history of the granuloma formation, outline the cranial imaging features associated with this rare condition and review the literature of similar cases.<\/jats:p>","DOI":"10.1136\/bcr-2024-261079","type":"journal-article","created":{"date-parts":[[2024,11,7]],"date-time":"2024-11-07T12:10:25Z","timestamp":1730981425000},"page":"e261079","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Corpus callosum granuloma after endovascular squid embolisation of a ruptured arteriovenous malformation"],"prefix":"10.1136","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1575-8776","authenticated-orcid":false,"given":"Linford","family":"Fernandes","sequence":"first","affiliation":[{"name":"Department of Neurology, Leeds Teaching Hospitals NHS Trust, Leeds, UK"},{"name":"University of Leeds School of Medicine, Leeds, West Yorkshire, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-1806-8537","authenticated-orcid":false,"given":"Fathallah Ismail","family":"Islim","sequence":"additional","affiliation":[{"name":"Department of Interventional Neuroradiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fozia","family":"Saeed","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Leeds Teaching Hospitals NHS Trust, Leeds, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tufail","family":"Patankar","sequence":"additional","affiliation":[{"name":"Department of Interventional Neuroradiology, Leeds Teaching Hospitals NHS Trust, Leeds, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zeid","family":"Yasiry","sequence":"additional","affiliation":[{"name":"Department of Neurology, Leeds Teaching Hospitals NHS Trust, Leeds, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,11,7]]},"reference":[{"key":"2025082801442958000_17.11.e261079.1","doi-asserted-by":"crossref","first-page":"35","DOI":"10.12659\/PJR.889120","article-title":"Onyx() in endovascular treatment of cerebral arteriovenous malformations - a review","volume":"78","author":"Szajner","year":"2013","journal-title":"Pol J Radiol"},{"key":"2025082801442958000_17.11.e261079.2","first-page":"13","article-title":"Combined therapy of cerebral arteriovenous malformations: histological differences between a non-adhesive liquid embolic agent and n-butyl 2-cyanoacrylate (NBCA)","volume":"21","author":"Duffner","year":"2002","journal-title":"Clin Neuropathol"},{"key":"2025082801442958000_17.11.e261079.3","doi-asserted-by":"publisher","DOI":"10.1007\/s00062-021-01066-6"},{"key":"2025082801442958000_17.11.e261079.4","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-200105000-00003"},{"key":"2025082801442958000_17.11.e261079.5","first-page":"D15","article-title":"Symptomatic Granuloma Secondary to Embolic Agent: A Case Report","volume":"10","author":"Gunawat","year":"2016","journal-title":"J Clin Diagn Res"},{"key":"2025082801442958000_17.11.e261079.6","doi-asserted-by":"publisher","DOI":"10.3171\/2008.12.JNS08441"},{"key":"2025082801442958000_17.11.e261079.7","doi-asserted-by":"crossref","first-page":"267","DOI":"10.7461\/jcen.2020.E2019.09.006","article-title":"Foreign body granuloma reaction after endovascular therapy of an unruptured right frontal arteriovenous malformation","volume":"22","author":"Lopez-Calle","year":"2020","journal-title":"J Cerebrovasc Endovasc Neurosurg"},{"key":"2025082801442958000_17.11.e261079.8","doi-asserted-by":"crossref","first-page":"463","DOI":"10.1016\/j.jocn.2006.11.022","article-title":"A case of mistaken identity: intracranial foreign body reaction after AVM embolisation mimicking a glioma","volume":"15","author":"Dinesh","year":"2008","journal-title":"J Clin Neurosci"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2024-261079","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T08:44:38Z","timestamp":1756370678000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2024-261079"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11]]},"references-count":8,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2024,11,7]]},"published-print":{"date-parts":[[2024,11]]}},"alternative-id":["10.1136\/bcr-2024-261079"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2024-261079","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2024,11]]}}}