{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,5,27]],"date-time":"2024-05-27T09:40:32Z","timestamp":1716802832901},"reference-count":3,"publisher":"BMJ","issue":"7","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Emerg Med J"],"accepted":{"date-parts":[[2017,12,31]]},"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:sec id=\"s1\"><jats:title>Clinical introduction<\/jats:title><jats:p>A 45-year-old man with no past medical history presents with bilateral lower extremity pain and perineal numbness after walking 10\u201315\u2009min. The pain starts in his bilateral buttocks and radiates down into his thigh and into his toes. He has no back pain, fever, difficulty urinating or stooling, incontinence or trauma. Social history is positive for smoking. Physical examination\u00a0was only remarkable for non-dopplerable lower extremity pulses, and he was unable to ambulate down the ED hallway without becoming symptomatic. Ultrasound of his abdominal aorta (figure 1) was performed.<\/jats:p><jats:fig id=\"F1\" position=\"float\" orientation=\"portrait\"><jats:label>Figure 1<\/jats:label><jats:caption><jats:p>Transverse view of distal abdominal aorta, just proximal to the bifurcation. (A) The\u00a0aorta without Doppler. (B) The same image with Doppler mode activated.<\/jats:p><\/jats:caption><jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"emermed-2017-207248f1\" position=\"float\" orientation=\"portrait\"\/><\/jats:fig><\/jats:sec><jats:sec id=\"s2\"><jats:title>Question<\/jats:title><jats:p>What is the most likely diagnosis based on the image?<\/jats:p><jats:p>A. Lumbar stenosis<\/jats:p><jats:p>B. Abdominal aortic aneurysm<\/jats:p><jats:p>C. Aortic thrombus<\/jats:p><jats:p>D. Aortic dissection<\/jats:p><\/jats:sec>","DOI":"10.1136\/emermed-2017-207248","type":"journal-article","created":{"date-parts":[[2018,6,21]],"date-time":"2018-06-21T15:15:21Z","timestamp":1529594121000},"page":"419-433","update-policy":"http:\/\/dx.doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Lower extremity pain and numbness"],"prefix":"10.1136","volume":"35","author":[{"given":"Nicholas R","family":"Pettit","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2018,6,21]]},"reference":[{"key":"2024052702114768000_35.7.419.1","doi-asserted-by":"crossref","first-page":"296","DOI":"10.1055\/s-0029-1242199","article-title":"Endovascular management of aortoiliac occlusive disease","volume":"26","author":"Neisen","year":"2009","journal-title":"Semin Intervent Radiol"},{"key":"2024052702114768000_35.7.419.2","doi-asserted-by":"publisher","DOI":"10.1007\/s12245-008-0039-x"},{"key":"2024052702114768000_35.7.419.3","doi-asserted-by":"publisher","DOI":"10.1007\/s11606-010-1412-z"}],"container-title":["Emergency Medicine Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/emermed-2017-207248","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,27]],"date-time":"2024-05-27T09:11:57Z","timestamp":1716801117000},"score":1,"resource":{"primary":{"URL":"https:\/\/emj.bmj.com\/lookup\/doi\/10.1136\/emermed-2017-207248"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,6,21]]},"references-count":3,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2018,6,21]]},"published-print":{"date-parts":[[2018,7]]}},"alternative-id":["10.1136\/emermed-2017-207248"],"URL":"https:\/\/doi.org\/10.1136\/emermed-2017-207248","relation":{},"ISSN":["1472-0205","1472-0213"],"issn-type":[{"value":"1472-0205","type":"print"},{"value":"1472-0213","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,6,21]]}}}