{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T16:16:41Z","timestamp":1771258601511,"version":"3.50.1"},"reference-count":8,"publisher":"BMJ","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Case Reports"],"abstract":"<jats:title\/>\n               <jats:p>Choroid plexus papillomas (CPP) are rare tumours and spinal metastases of CPP are even less common. We report a 50-year-old woman with spinal drop metastases at Th9 and S1\u20132 6\u2005years after total resection of a posterior fossa CPP. The metastasis at S1\u20132 was resected and histological examination showed transformation to an atypical CPP. Atypical transformation in a metastasis years after resection of a benign posterior fossa CPP has been described once. We would like to advocate craniospinal MRI at the time of initial diagnosis as well as periodic follow-up after total and subtotal resection of a posterior fossa CPP in adults at least once in 1 or 2\u2005years, depending on the histological grading of the primary CPP. In our case report, this could have resulted in earlier diagnosis of the locoregional recurrence or of the spinal drop metastasis.<\/jats:p>","DOI":"10.1136\/bcr-01-2012-5681","type":"journal-article","created":{"date-parts":[[2012,8,24]],"date-time":"2012-08-24T12:03:58Z","timestamp":1345809838000},"page":"bcr0120125681","source":"Crossref","is-referenced-by-count":12,"title":["Atypical transformation in sacral drop metastasis from posterior fossa choroid plexus papilloma: Figure 1"],"prefix":"10.1136","volume":"2012","author":[{"given":"Mischa","family":"Stuivenvolt","sequence":"first","affiliation":[{"name":"1Department of Neurology, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ellen","family":"Mandl","sequence":"additional","affiliation":[{"name":"2Department of Neurosurgery, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeroen","family":"Verheul","sequence":"additional","affiliation":[{"name":"2Department of Neurosurgery, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruth","family":"Fleischeuer","sequence":"additional","affiliation":[{"name":"3Department of Pathology, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cees C","family":"Tijssen","sequence":"additional","affiliation":[{"name":"1Department of Neurology, St Elisabeth Hospital, Tilburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2012,8,24]]},"reference":[{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.1","doi-asserted-by":"publisher","DOI":"10.1007\/s11060-006-9238-6"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.2","doi-asserted-by":"publisher","DOI":"10.3109\/02688697.2010.487135"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.3","doi-asserted-by":"publisher","DOI":"10.3171\/spi.2006.4.6.494"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.4","first-page":"199","article-title":"Malignant progression in choroid plexus papillomas","volume":"107","author":"Jeibmann","year":"2007","journal-title":"J Neurosurg"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.5","doi-asserted-by":"publisher","DOI":"10.1007\/s11060-006-9300-4"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.6","doi-asserted-by":"publisher","DOI":"10.1016\/j.surneu.2005.09.023"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.7","doi-asserted-by":"publisher","DOI":"10.1007\/s00701-007-1292-0"},{"key":"2025082802503105000_2012.aug22_1.bcr0120125681.8","doi-asserted-by":"publisher","DOI":"10.3340\/jkns.2007.42.6.475"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-01-2012-5681","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T09:50:40Z","timestamp":1756374640000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-01-2012-5681"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,8,24]]},"references-count":8,"alternative-id":["10.1136\/bcr-01-2012-5681"],"URL":"https:\/\/doi.org\/10.1136\/bcr-01-2012-5681","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,8,24]]}}}