{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T00:03:50Z","timestamp":1759881830800,"version":"build-2065373602"},"reference-count":10,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2025,9,18]],"date-time":"2025-09-18T00:00:00Z","timestamp":1758153600000},"content-version":"vor","delay-in-days":17,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Pneumoparotid is an unusual condition involving retrograde insufflation of air via the mouth into the parotid gland. In rare circumstances it can be complicated by subcutaneous emphysema. We describe a highly unusual case of rapid-onset facial swelling and limited eye-opening in an otherwise clinically well 13-year-old female. Computed tomography imaging showed pneumoparotid and extensive surgical emphysema involving the cervicofacial soft tissues and mediastinum. A detailed history revealed habitual Valsalva-related behaviours, including ear-popping and blowing bubbles in drinks. She was diagnosed with subcutaneous emphysema secondary to pneumoparotid, and her symptoms resolved with conservative management.<\/jats:p>","DOI":"10.1093\/bjrcr\/uaaf048","type":"journal-article","created":{"date-parts":[[2025,9,20]],"date-time":"2025-09-20T00:28:28Z","timestamp":1758328108000},"source":"Crossref","is-referenced-by-count":0,"title":["Pneumoparotid causing subcutaneous emphysema secondary to chronic habitual Valsalva behaviours in a 13-year-old girl"],"prefix":"10.1093","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9015-3216","authenticated-orcid":false,"given":"Jessica","family":"Carter","sequence":"first","affiliation":[{"name":"Department of Radiology, Royal Free NHS Foundation Hospital Trust , London, NW3 2QG,","place":["United Kingdom"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jody","family":"Maclachlan","sequence":"additional","affiliation":[{"name":"Department of Radiology, Royal Free NHS Foundation Hospital Trust , London, NW3 2QG,","place":["United Kingdom"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Wylie","sequence":"additional","affiliation":[{"name":"Department of Radiology, Royal Free NHS Foundation Hospital Trust , London, NW3 2QG,","place":["United Kingdom"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shilen","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of Maxillofacial Surgery, Royal Free NHS Foundation Hospital Trust , London, NW3 2QG,","place":["United Kingdom"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sherif","family":"Hanna","sequence":"additional","affiliation":[{"name":"Department of Radiology, Royal Free NHS Foundation Hospital Trust , London, NW3 2QG,","place":["United Kingdom"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2025,9,18]]},"reference":[{"key":"2025100619563134900_uaaf048-B1","doi-asserted-by":"publisher","first-page":"1987","DOI":"10.3174\/ajnr.A6309","article-title":"Imaging findings related to the valsalva maneuver in head and neck radiology","volume":"40","author":"Madhavan","year":"2019","journal-title":"AJNR Am J Neuroradiol"},{"key":"2025100619563134900_uaaf048-B2","doi-asserted-by":"publisher","first-page":"53","DOI":"10.1186\/s40463-023-00658-1","article-title":"Sialendoscopy approach in treating juvenile recurrent parotitis: a systematic review","volume":"52","author":"Soriano-Mart\u00edn","year":"2023","journal-title":"J Otolaryngol Head Neck Surg"},{"key":"2025100619563134900_uaaf048-B3","doi-asserted-by":"publisher","first-page":"144","DOI":"10.3390\/jcm12010144.5","article-title":"Etiology of pneumoparotid: a systematic review","volume":"12","author":"Yoshida","year":"2022","journal-title":"J Clin Med"},{"key":"2025100619563134900_uaaf048-B4","doi-asserted-by":"publisher","first-page":"3936","DOI":"10.3390\/ijerph17113936","article-title":"Pneumoparotid and pneumoparotitis: a literary review","volume":"17","author":"Gazia","year":"2020","journal-title":"Int J Environ Res Public Health"},{"key":"2025100619563134900_uaaf048-B5","doi-asserted-by":"publisher","first-page":"100227","DOI":"10.1016\/j.xocr.2020.100227","article-title":"Inflating parotids with air: a case of pneumoparotid and review of the literature. 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