{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T10:40:03Z","timestamp":1788864003896,"version":"build-2803163510"},"reference-count":156,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:p>This paper is a narrative review of extraaxial developmental venous anomalies (eDVAs) of the brain involving dural venous flow or sinuses: persistent embryonic sinuses, sinus pericranii, enlarged emissary veins, and venous varices or aneurysmal malformations. The article highlights the natural history, anatomy, embryology, imaging, clinical implications, and neurosurgical significance of these lesions, which the authors believe represent a continuum, with different entities characterized by distinct embryopathologic features. The indications and surgical management options are discussed for these individual intracranial pathologies with relevant illustrations, and a novel classification is proposed for persistent falcine sinus (PFS). The role of neurointervention and\/or microsurgery in specific cases such as sinus pericranii and enlarged emissary veins of the skull is highlighted.<\/jats:p>\n                  <jats:p>A better understanding of the pathophysiology and developmental anatomy of these lesions can reduce treatment morbidity and mortality. Some patients, including those with vein of Galen malformations (VOGMs), can present with the added systemic morbidity of a high-output cardiac failure. Although VOGM is the most studied and classified of the above-mentioned eDVAs, the authors believe that grouping the former with the other venous anomalies\/abnormalities listed above would enable the clinician to convey the exact morphophysiological configuration of these lesions, predict their natural history with respect to evolving venous hypertension or stroke, and extrapolate invaluable insights from VOGM treatment to the treatment of other eDVAs. In recent years, many of these symptomatic venous malformations have been treated with endovascular interventions, although these techniques are still being refined. The authors highlight the broad concept of eDVAs and hope that this work will serve as a basis for future studies investigating the role of evolving focal venous hypertension\/global intracranial hypertension and possibilities of fetal surgical intervention in these cases.<\/jats:p>","DOI":"10.3171\/2018.5.focus18107","type":"journal-article","created":{"date-parts":[[2018,7,1]],"date-time":"2018-07-01T03:37:02Z","timestamp":1530416222000},"page":"E9","source":"Crossref","is-referenced-by-count":41,"title":["A review of extraaxial developmental venous anomalies of the brain involving dural venous flow or sinuses: persistent embryonic sinuses, sinus pericranii, venous varices or aneurysmal malformations, and enlarged emissary veins"],"prefix":"10.3171","volume":"45","author":[{"given":"Sunil","family":"Manjila","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, McLaren Bay Region Medical Center, Bay City, Michigan;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy","family":"Bazil","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, McLaren Bay Region Medical Center, Bay City, Michigan;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew","family":"Thomas","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, McLaren Bay Region Medical Center, Bay City, Michigan;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sunithi","family":"Mani","sequence":"additional","affiliation":[{"name":"Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew","family":"Kay","sequence":"additional","affiliation":[{"name":"Department of Medical Imaging, University of Arizona College of Medicine, Tucson, Arizona"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Unni","family":"Udayasankar","sequence":"additional","affiliation":[{"name":"Department of Medical Imaging, University of Arizona College of Medicine, Tucson, Arizona"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Neurosurgery Update II: Vascular, Spinal, Pediatric, and Functional Neurosurgery","first-page":"70","article-title":"Sinus pericranii","author":"Alexander EJ","year":"1991","unstructured":"Alexander EJ, Ball MR: Sinus pericranii, in Wilkins RH, Rengachary SS (eds): Neurosurgery Update II: Vascular, Spinal, Pediatric, and Functional Neurosurgery. 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