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Rarely, residual ORC has been associated with a foreign body reaction generating cystic or granulomatous lesions (i.e., textilomas) at the surgical site. Here, we report a bedside\u2010to\u2010bench, translational report of an intracranial mass after neurosurgical resection of glioblastoma with ORC application. As part of patient care, we performed magnetic resonance imaging and histopathological analysis of the mass. We then performed in vitro studies to evaluate the effect of ORC on cytokine production and viability of BV\u20102 murine microglial cells by using quantitative PCR along with live cell microscopy and crystal violet staining, respectively. Magnetic resonance imaging demonstrated a recurrent mass pressing on the adjacent right ventricle, which was removed in a second surgery for diagnostic and therapeutic purposes. Unexpectedly, histopathological examination of the resected mass revealed abundant ORC arising from the site with inflammation, microglial activation, and collagenization. Mechanistically, we show an ORC\u2010induced modest increase in inflammatory cytokines with a subsequent decrease in microglial cell viability. These findings suggest that ORC may mediate microglial immune response and viability, and serve to raise awareness and guide interpretation of post\u2010treatment surveillance imaging findings in the instance of foreign body reaction.<\/jats:p>","DOI":"10.1111\/bpa.13331","type":"journal-article","created":{"date-parts":[[2025,1,22]],"date-time":"2025-01-22T00:43:46Z","timestamp":1737506626000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Brain\u2010derived textiloma post glioblastoma resection and application of oxidized regenerated cellulose: A pilot, bedside\u2010to\u2010bench, translational study"],"prefix":"10.1111","volume":"35","author":[{"given":"Joshua A.","family":"Kra","sequence":"first","affiliation":[{"name":"Rutgers Cancer Institute  Newark New Jersey USA"},{"name":"Division of Hematology\/Oncology, Department of Medicine Rutgers New Jersey Medical School  Newark New Jersey USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher","family":"Markosian","sequence":"additional","affiliation":[{"name":"Rutgers Cancer Institute  Newark New Jersey USA"},{"name":"Division of Cancer Biology, Department of Radiation Oncology Rutgers New Jersey Medical School  Newark New Jersey USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fenny H. 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