{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T03:26:21Z","timestamp":1787196381666,"version":"build-2736575974"},"reference-count":23,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2008,1,1]],"date-time":"2008-01-01T00:00:00Z","timestamp":1199145600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2008,1,1]],"date-time":"2008-01-01T00:00:00Z","timestamp":1199145600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Ultrasound Medicine"],"published-print":{"date-parts":[[2008,1]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Visualization of the cavum septi pellucidi (CSP) is considered an integral part of the prenatal second\u2010and third\u2010trimester sonographic evaluations of the fetal neural axis. We have noted that another anatomic structure, the columns of the fornix, can be mistaken for the CSP and result in the missed diagnosis of agenesis of the corpus callosum.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We describe a case in which the columns of the fornix were misinterpreted as representing the CSP during a sonographic evaluation at 18 weeks' gestation. After a follow\u2010up sonogram at 35 weeks, agenesis of the corpus callosum was detected. A retrospective evaluation of the prevalence of forniceal columns was then performed in 100 consecutive sonograms of pregnancies between 18 and 24 weeks' gestation. A prospective study was then performed in 20 patients to determine the prevalence of visualization of the columns of the fornix.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In 86 of 100 patients, the columns of the fornix were retrospectively identified as discrete and separate structures from the CSP. When additional views were obtained prospectively in the forebrain, the fornix could be identified in all 20 patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The columns of the fornix may simulate the appearance of the CSP on second\u2010 and third\u2010trimester sonograms. The distinction between these structures can be made because the columns of the fornix will show a linear reflection (3 lines) at their interface, whereas the CSP will appear as a fluid\u2010filled triangular or rectangular fluid\u2010filled space without a central line.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.7863\/jum.2008.27.1.25","type":"journal-article","created":{"date-parts":[[2017,1,9]],"date-time":"2017-01-09T12:57:03Z","timestamp":1483966623000},"page":"25-31","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":40,"title":["Columns of the Fornix, Not to Be Mistaken for the Cavum Septi Pellucidi on Prenatal Sonography"],"prefix":"10.7863","volume":"27","author":[{"given":"Peter W.","family":"Callen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew L.","family":"Callen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Orit A.","family":"Glenn","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ants","family":"Toi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2008,1,1]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2003.22.10.1116"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006250-200412000-00045"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.3909"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.172.2.2664864"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.172.2.2664859"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.wnq.0000186664.76284.da"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0037-198X(99)80013-3"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.152.2.353"},{"key":"e_1_2_6_10_1","first-page":"296","volume":"21","year":"2000","journal-title":"AJNR Am J Neuroradiol"},{"key":"e_1_2_6_11_1","unstructured":"Gray H. Anatomy of the Human Body. Goss CM (ed). New York NY: Bartleby.com;2000:865\u2013866. Available at:http:\/\/www.bartleby.com\/107\/."},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.1870180507"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/cne.901320103"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.1870150408"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.7863\/jum.1985.4.11.613"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.151.2.6709917"},{"key":"e_1_2_6_17_1","first-page":"213","volume":"92","year":"1961","journal-title":"Brain"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.2000.00244.x"},{"key":"e_1_2_6_19_1","unstructured":"Gray H. Anatomy of the Human Body. Goss CM (ed). New York NY: Bartleby.com;2000:840. 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