{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,3,27]],"date-time":"2023-03-27T02:29:32Z","timestamp":1679884172664},"reference-count":23,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JNS"],"published-print":{"date-parts":[[2006,3]]},"abstract":"<jats:p>\u2713 Metastatic seeding or iatrogenic implantation of numerous types of primary central nervous system tumors, typically along cerebrospinal fluid pathways, is a frequently described albeit rare phenomenon and has never been reported in association with vestibular schwannoma (VS). The authors present a case of inadvertent surgical implantation of VS into the cerebellar hemisphere during resection of a recurrent VS in the cerebellopontine angle and internal auditory canal. A 42-year-old man presented with a 2.5-cm right VS that was removed without complication via a retrosigmoid approach. Routine imaging performed 5 years later revealed a 1.5-cm recurrence of the VS that was subsequently removed by reopening the retrosigmoid craniotomy. Five years later\u201410 years after initial presentation\u2014follow-up imaging revealed a 1-cm recurrence of the VS and a separate 2.2-cm tumor in the inferior cerebellar parenchyma with surrounding edema. Both tumors were removed without complication by reopening the previous retrosigmoid craniotomy. Histological evaluation of these tumors revealed features typical of VS and similar to those of the tissue obtained from the two prior resections. Given the similarities among these tumors in pathological appearance and mitotic index, the presence of the intraparenchymal cerebellar schwannoma was probably due to intraoperative iatrogenic implantation.<\/jats:p>","DOI":"10.3171\/jns.2006.104.3.452","type":"journal-article","created":{"date-parts":[[2008,1,24]],"date-time":"2008-01-24T12:30:53Z","timestamp":1201177853000},"page":"452-456","source":"Crossref","is-referenced-by-count":2,"title":["Iatrogenic cerebellar implantation of a vestibular schwannoma"],"prefix":"10.3171","volume":"104","author":[{"given":"Todd A.","family":"Patrick","sequence":"first","affiliation":[{"name":"Departments of Neurologic Surgery and Pathology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota; and Department of Neurosurgery, Midelfort Clinic, Eau Claire, Wisconsin"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caterina","family":"Giannini","sequence":"additional","affiliation":[{"name":"Departments of Neurologic Surgery and Pathology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota; 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