{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T19:02:38Z","timestamp":1780340558533,"version":"3.54.1"},"reference-count":34,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:p>Epidural varicosis is a rare though well-known cause of cauda equina syndrome (CES). Although inferior vena cava (IVC) obstruction is the most common finding in such cases, portal vein hypertension can lead to epidural venous plexus engorgement by means of lumbar portocaval shunt activation.<\/jats:p><jats:p>A 40-year-old woman presented with right-sided sciatica, which progressed to right foot drop and a 3-day history of vesical tenesmus and fecal retention. She was initially diagnosed with L4\u20135 lumbar disc protrusion. However, contrast-enhanced lumbar MRI scan showed the presence of epidural varices in the L3\u2013S1 tract. Given the absence of vascular anomalies amenable to resection, etiological conservative treatment was addressed. Therefore, a complete diagnostic workup was performed and revealed deep vein thrombosis (DVT), pulmonary embolism, and portal vein thrombosis. Oral anticoagulant therapy was initiated and prompt resolution of CES was observed. To the authors\u2019 knowledge, this is the first report of CES secondary to epidural varicosis in the setting of acute portal vein thrombosis and extrahepatic portal vein obstruction (EHPVO). In cases of epidural varicosis, conservative etiological treatment is the most appropriate choice as CES may be the epiphenomenon of underlying systemic pathophysiological processes.<\/jats:p>","DOI":"10.3171\/2020.6.spine20625","type":"journal-article","created":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T07:19:23Z","timestamp":1609485563000},"page":"1-6","source":"Crossref","is-referenced-by-count":6,"title":["Cauda equina syndrome secondary to portal vein thrombosis: case report of favorable outcome with conservative treatment"],"prefix":"10.3171","author":[{"given":"Alberto","family":"Campione","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Ospedale di Circolo Fondazione Macchi\u2014ASST Settelaghi; and"},{"name":"Department of Neurosurgery, Universit\u00e0 degli Studi dell\u2019Insubria, and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gianluca","family":"Agresta","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Ospedale di Circolo Fondazione Macchi\u2014ASST Settelaghi; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Davide","family":"Locatelli","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Ospedale di Circolo Fondazione Macchi\u2014ASST Settelaghi; and"},{"name":"Department of Neurosurgery, Universit\u00e0 degli Studi dell\u2019Insubria, and"},{"name":"Head and Neck Surgery & Forensic Dissection Research Center, Department of Biotechnology and Life Sciences, Universit\u00e0 degli Studi dell\u2019Insubria, Varese, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabio","family":"Pozzi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Ospedale di Circolo Fondazione Macchi\u2014ASST Settelaghi; and"},{"name":"Department of Neurosurgery, Universit\u00e0 degli Studi dell\u2019Insubria, and"},{"name":"Head and Neck Surgery & Forensic Dissection Research Center, Department of Biotechnology and Life Sciences, Universit\u00e0 degli Studi dell\u2019Insubria, Varese, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Am J Case Rep","first-page":"694","article-title":"An unusual cause of cauda equina syndrome: lumbar epidural venous engorgement","volume":"19","author":"AlTahan HA","year":"2018","unstructured":"AlTahan HA, Amer RR, Madani AA, Bakhsh EA. 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