{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T18:56:36Z","timestamp":1769799396190,"version":"3.49.0"},"reference-count":10,"publisher":"IMR Press","issue":"1","license":[{"start":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:00:00Z","timestamp":1769385600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br. J. Hosp. Med. (Lond)"],"abstract":"<jats:p>Aims\/Background: Inferior vena cava (IVC) anomalies are uncommon, with absent infrarenal IVC reported as one of the rarest congenital vascular anomalies. They are associated with deep vein thrombosis (DVT) particularly in younger patients, which can have serious complications if not recognised and treated appropriately. Case Presentation: We describe the case of a 35-year-old male with absent infrarenal IVC presenting with acute DVT. Results: Radiologists and clinicians should understand the relationship between IVC anomalies and DVT, particularly in younger patients. Conclusion: This case highlights the importance of multi-modality diagnostic and interventional imaging techniques in assessing and treating patients effectively.<\/jats:p>","DOI":"10.31083\/bjhm50375","type":"journal-article","created":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T07:17:52Z","timestamp":1769757472000},"source":"Crossref","is-referenced-by-count":0,"title":["A Case of Absent Infrarenal Vena Cava Presenting With Deep Vein Thrombosis: A Case Report"],"prefix":"10.31083","volume":"87","author":[{"given":"Gianfranco","family":"Artesi","sequence":"first","affiliation":[{"name":"University College London Hospitals NHS Foundation Trust, NW1 2PG London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jessica","family":"Carter","sequence":"additional","affiliation":[{"name":"Royal Free London NHS Foundation Trust, NW3 2QG London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ajay","family":"Singaravelou","sequence":"additional","affiliation":[{"name":"Chelsea and Westminster Hospital NHS Foundation Trust, SW10 9NH London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rachel","family":"Clements","sequence":"additional","affiliation":[{"name":"Royal Free London NHS Foundation Trust, NW3 2QG London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"16242","published-online":{"date-parts":[[2026,1,26]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","unstructured":"Osborne T, Sheehan F. An unusual case of deep venous thrombosis in a young patient: congenital absence of the infrarenal portion of the inferior vena cava. Oxford Medical Case Reports. 2019; 2019: omz053.","DOI":"10.1093\/omcr\/omz053"},{"key":"ref2","doi-asserted-by":"publisher","unstructured":"Algaly G, Alsuyihili A, Parveen A. Extensive deep vein thrombosis in a young girl with absent inferior vena cava and iliac veins: a case report. Oxford Medical Case Reports. 2023; 2023: omad008.","DOI":"10.1093\/omcr\/omad008"},{"key":"ref3","doi-asserted-by":"publisher","unstructured":"Kim SS, Shin HC, Hwang JA, Jou SS, Lee WH, Choi SY, et al. Various congenital anomalies of the inferior vena cava: review of cross-sectional imaging findings and report of a new variant. Abdominal Radiology. 2018; 43: 2130\u20132149.","DOI":"10.1007\/s00261-017-1430-y"},{"key":"ref4","doi-asserted-by":"publisher","unstructured":"Halparin J, Monagle P, Newall F. Congenital abnormalities of the inferior vena cava presenting clinically in adolescent males. Thrombosis Research. 2015; 135: 648\u2013651.","DOI":"10.1016\/j.thromres.2015.01.032"},{"key":"ref5","doi-asserted-by":"publisher","unstructured":"Ramanathan T, Hughes TM, Richardson AJ. Perinatal inferior vena cava thrombosis and absence of the infrarenal inferior vena cava. Journal of Vascular Surgery. 2001; 33: 1097\u20131099.","DOI":"10.1067\/mva.2001.114205"},{"key":"ref6","doi-asserted-by":"publisher","unstructured":"Iarossi M, Hermans C. Direct Oral Anticoagulants for Inferior Vena Cava Agenesis. Clinical and Applied Thrombosis\/Hemostasis. 2023; 29: 10760296231200224.","DOI":"10.1177\/10760296231200224"},{"key":"ref7","doi-asserted-by":"publisher","unstructured":"Kannappan M, Sakthi Velavan S. Inferior Vena Cava Agenesis: An Underrated Cause of Deep Venous Thrombosis. Cureus. 2023; 15: e33667.","DOI":"10.7759\/cureus.33667"},{"key":"ref8","doi-asserted-by":"publisher","unstructured":"Tufano A, L\u00f3pez-Jim\u00e9nez L, Bikdeli B, Garc\u00eda-Bragado F, Mazzolai L, Amitrano M, et al. Inferior vena cava agenesis in patients with lower limb deep vein thrombosis in the RIETE registry. When and why to suspect. International Journal of Cardiology. 2020; 305: 115\u2013119.","DOI":"10.1016\/j.ijcard.2020.01.013"},{"key":"ref9","doi-asserted-by":"publisher","unstructured":"Lambert M, Marboeuf P, Midulla M, Trillot N, Beregi JP, Mounier-Vehier C, et al. Inferior vena cava agenesis and deep vein thrombosis: 10 patients and review of the literature. Vascular Medicine. 2010; 15: 451\u2013459.","DOI":"10.1177\/1358863X10391355"},{"key":"ref10","doi-asserted-by":"publisher","unstructured":"Riera-Mestre A, Romera A, Fern\u00e1ndez A, Corbella X. Long-term follow-up after anticoagulant treatment withdrawal in patients with deep venous thrombosis and inferior vena cava agenesis. European Journal of Internal Medicine. 2014; 25: e113\u2013e114.","DOI":"10.1016\/j.ejim.2014.10.008"}],"container-title":["British Journal of Hospital Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.imrpress.com\/journal\/BJHM\/87\/1\/10.31083\/BJHM50375","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T07:18:27Z","timestamp":1769757507000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.imrpress.com\/journal\/BJHM\/87\/1\/10.31083\/BJHM50375"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1,26]]},"references-count":10,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2026]]}},"alternative-id":["S1750-8460(26)00127-0"],"URL":"https:\/\/doi.org\/10.31083\/bjhm50375","relation":{},"ISSN":["1750-8460","1759-7390"],"issn-type":[{"value":"1750-8460","type":"print"},{"value":"1759-7390","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1,26]]},"article-number":"50375"}}