{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T19:37:12Z","timestamp":1787773032784,"version":"build-2784847793"},"reference-count":6,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,1]]},"abstract":"<jats:p>Atypical choroid plexus papilloma is classified as WHO (World Health Organization) Grade II subtype of choroid plexus tumor, and it has intermediate pathological features, prognosis, and clinical outcome rates between choroid plexus papilloma and choroid plexus carcinoma. These tumors are more common in children compared with adults and are usually located in the lateral ventricles. We present a case of an adult with atypical choroid plexus papilloma located in the infratentorial region. A 41-year-old woman underwent evaluation for headache and dull aching neck pain. Magnetic resonance imaging (MRI) of the brain revealed a well-defined intraventricular mass lesion in the fourth ventricle and foramen of Luschka. She underwent craniotomy and gross total excision of the lesion. Histopathological and immunohistochemical findings confirmed the diagnosis of atypical choroid plexus papilloma (WHO Grade II). We discuss the various treatment options for this condition and review the relevant literature.<\/jats:p>","DOI":"10.4103\/ijc.ijc_194_21","type":"journal-article","created":{"date-parts":[[2024,4,10]],"date-time":"2024-04-10T06:23:31Z","timestamp":1712730211000},"page":"121-124","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":3,"title":["Infratentorial atypical choroid plexus papilloma in an adult: A case report and literature review"],"prefix":"10.4103","volume":"60","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0033-3775","authenticated-orcid":false,"given":"Ritu R.","family":"Menon","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology, Regional Cancer Centre, Trivandrum, Kerala, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0002-9933","authenticated-orcid":false,"given":"Asha","family":"Arjunan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6025-1296","authenticated-orcid":false,"given":"Anitha","family":"Mathews","sequence":"additional","affiliation":[{"name":"Department of Pathology, Regional Cancer Centre, Trivandrum, Kerala, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9322-7404","authenticated-orcid":false,"given":"Jiji","family":"Valsalamony","sequence":"additional","affiliation":[{"name":"Department of Radiodiagnosis, Regional Cancer Centre, Trivandrum, Kerala, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9492-4471","authenticated-orcid":false,"given":"Neelima","family":"Radhakrishnan","sequence":"additional","affiliation":[{"name":"Department of Pathology, Regional Cancer Centre, Trivandrum, Kerala, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2023,1,10]]},"reference":[{"key":"R1-20240828","doi-asserted-by":"crossref","first-page":"104","DOI":"10.1002\/1097-0029(20010101)52:1<104::AID-JEMT12>3.0.CO;2-3","article-title":"Tumors of the choroid plexus","volume":"52","author":"Rickert","year":"2001","journal-title":"Microsc Res Tech"},{"key":"R3-20240828","doi-asserted-by":"crossref","first-page":"383","DOI":"10.1007\/s11060-009-9936-y","article-title":"Atypical choroid plexus papilloma:clinical experience in the CPT-SIOP-2000 study","volume":"95","author":"Wrede","year":"2009","journal-title":"J Neurooncol"},{"key":"R4-20240828","first-page":"vdaa139","article-title":"Role of available adjuvant therapies following surgical resection of atypical choroid plexus papilloma-a systematic review and pooled analysis","volume":"2","author":"Tavallaii","year":"2020","journal-title":"Neurooncol Adv"},{"key":"R5-20240828","doi-asserted-by":"crossref","first-page":"1069","DOI":"10.1097\/01.jnen.0000240464.26005.90","article-title":"Prognostic implications of atypical histologic features in choroid plexus papilloma","volume":"65","author":"Jeibmann","year":"2006","journal-title":"J Neuropathol Exp Neurol"},{"key":"R6-20240828","doi-asserted-by":"crossref","first-page":"184","DOI":"10.1158\/1078-0432.CCR-14-1324","article-title":"Molecular characterization of choroid plexus tumors reveals novel clinically relevant subgroups","volume":"21","author":"Merino","year":"2015","journal-title":"Clin Cancer Res"},{"key":"R7-20240828","doi-asserted-by":"crossref","first-page":"745","DOI":"10.1007\/s00701-019-03832-5","article-title":"Management of choroid plexus tumors-an institutional experience","volume":"161","author":"Hosmann","year":"2019","journal-title":"Acta Neurochir (Wien)"}],"container-title":["Indian Journal of Cancer"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/ijc.IJC_194_21","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T19:17:15Z","timestamp":1787771835000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/ijc.IJC_194_21"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,1]]},"references-count":6,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2023]]}},"URL":"https:\/\/doi.org\/10.4103\/ijc.ijc_194_21","relation":{},"ISSN":["0019-509X","1998-4774"],"issn-type":[{"value":"0019-509X","type":"print"},{"value":"1998-4774","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,1]]},"assertion":[{"value":"2021-02-13","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-03-20","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}