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In the vicinity of the paramedian structure, crucial brain regions for higher brain function such as corpus callosum and cingulate cortex are located. However, the actual area of ischemia induced by damaging the medullary artery supplying the paramedian structures is not known. The present study investigated the ischemic field following tumor resection in paramedian structures of the frontal lobe.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>methods<\/jats:title>\n            <jats:p>Patients having intraparenchymal tumors with lesions in the paramedian structures of the frontal lobe (superior frontal gyrus or cingulate gyrus) resected between April 2016 and June 2022 at Tohoku University Hospital were included in the study. Magnetic resonance images obtained within 72\u00a0h after surgery were used to retrospectively examine the extent of the resection and the distribution of ischemic complications. Related postoperative clinical symptoms were assessed using medical records.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Thirty-three cases matched the inclusion criteria. The median age was 48\u00a0years. Cases comprised patients with an astrocytoma IDH-mutant (<jats:italic>n<\/jats:italic>\u2009=\u200911), oligodendroglioma IDH-mutant, and 1p\/19q-codeletion (<jats:italic>n<\/jats:italic>\u2009=\u200912), and glioblastoma IDH-wildtype (<jats:italic>n<\/jats:italic>\u2009=\u200910). The main locations were superior frontal gyrus only (<jats:italic>n<\/jats:italic>\u2009=\u200917), cingulate gyrus only (<jats:italic>n<\/jats:italic>\u2009=\u20098), and both the frontal lobe and cingulate gyrus (<jats:italic>n<\/jats:italic>\u2009=\u20098). The cingulate gyrus was removed in 19 cases. In 16 of the 19 cases, ischemic foci were observed in the adjacent corpus callosum. In the 14 cases in which the cingulate gyrus was not removed, no ischemic foci appeared in the corpus callosum. Three cases exhibited a prolonged disturbance of consciousness after the second postoperative day, all with corpus callosum infarction.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>Surgeons resecting intraparenchymal tumors in the paramedian structures of the frontal lobe, especially the cingulate gyrus, should be aware of the potential for ischemia foci emerging in the corpus callosum.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s00701-025-06555-y","type":"journal-article","created":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T07:26:19Z","timestamp":1747121179000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Tumor resection in paramedian structures of the frontal lobe poses a risk for corpus callosum infarction"],"prefix":"10.1007","volume":"167","author":[{"given":"Yoshiteru","family":"Shimoda","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masayuki","family":"Kanamori","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shinichiro","family":"Osawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shingo","family":"Kayano","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ryuta","family":"Saito","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mugikura","family":"Shunji","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tominaga","family":"Teiji","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidenori","family":"Endo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,5,13]]},"reference":[{"issue":"3","key":"6555_CR1","doi-asserted-by":"publisher","first-page":"W160","DOI":"10.2214\/AJR.16.17231","volume":"209","author":"T Akashi","year":"2017","unstructured":"Akashi T, Takahashi S, Mugikura S, Sato S, Murata T, Umetsu A, Takase K (2017) Ischemic white matter lesions associated with medullary arteries: classification of mri findings based on the anatomic arterial distributions. 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