{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,3,4]],"date-time":"2025-03-04T06:03:34Z","timestamp":1741068214242,"version":"3.38.0"},"reference-count":18,"publisher":"Georg Thieme Verlag KG","issue":"01","license":[{"start":{"date-parts":[[2024,10,10]],"date-time":"2024-10-10T00:00:00Z","timestamp":1728518400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Asian J Neurosurg"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Intracranial choriocarcinoma is a rare and aggressive neoplasm characterized by the proliferation of trophoblastic tissue. Although choriocarcinoma most commonly arises in the uterus as a component of gestational trophoblastic neoplasia, instances of intracranial choriocarcinoma are exceptionally uncommon. We report a case of intracranial choriocarcinoma without any evidence of a tumor elsewhere. A 25-year-old woman presented with a history of 1 month of evolution with right frontal hemicranial headache, followed by visual disturbances, otalgia, and diplopia. On neurological examination, she was conscious, cooperative, and well-oriented; a grade 1 bilateral papilledema, left homonymous hemianopsia, and sixth cranial nerve paresis, with diplopia, were detected. Neuroimaging showed a right parieto-occipital lesion with features mimicking an atypical meningioma. After surgical resection, a diagnosis of choriocarcinoma was issued. Primary intracranial choriocarcinomas are typically located in the sellar and pineal regions. The occurrence of this tumor within the occipital lobe suggested metastasis; however, a primary tumor in the thoracic or abdominal organs was not observed and a delayed metastasis was considered. This case highlights the diagnostic challenges associated with intracranial choriocarcinoma.<\/jats:p>","DOI":"10.1055\/s-0044-1791712","type":"journal-article","created":{"date-parts":[[2024,10,10]],"date-time":"2024-10-10T23:30:08Z","timestamp":1728603008000},"page":"155-159","source":"Crossref","is-referenced-by-count":0,"title":["Metastatic Intracranial Choriocarcinoma in the Absence of a Primary Lesion: A Case Report"],"prefix":"10.1055","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-1639-4727","authenticated-orcid":false,"given":"Steven-Andr\u00e9s","family":"Pi\u00f1a-Ballantyne","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Instituto Nacional de Neurolog\u00eda y Neurocirug\u00eda Manuel Velasco Su\u00e1rez, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4643-6590","authenticated-orcid":false,"given":"Eunice-Jazm\u00edn","family":"Espinosa-Aguilar","sequence":"additional","affiliation":[{"name":"Internal Medicine Department, Cl\u00ednica-Hospital M\u00e9rida, Yucat\u00e1n, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2652-3825","authenticated-orcid":false,"given":"Ana-Laura","family":"Calder\u00f3n-Garcidue\u00f1as","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Instituto Nacional de Neurolog\u00eda y Neurocirug\u00eda Manuel Velasco Su\u00e1rez, Mexico City, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebeca de Jesus","family":"Ramos-S\u00e1nchez","sequence":"additional","affiliation":[{"name":"Department of Neuroradiology, Instituto Nacional de Neurolog\u00eda y Neurocirug\u00eda Manuel Velasco Su\u00e1rez, Mexico 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