{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T04:01:00Z","timestamp":1790654460801,"version":"4.1.0"},"reference-count":10,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,1,7]],"date-time":"2025-01-07T00:00:00Z","timestamp":1736208000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Elbow synovial cysts are rare and can mimic more frequently encountered disorders such as lateral epicondylitis, presenting diagnostic challenges. This report describes a woman in her mid-40s with persistent pain and weakness in her right forearm due to a synovial cyst compressing the radial nerve at the Arcade of Frohse. Despite initial suspicions of lateral epicondylitis, deeper investigation using sonography confirmed the presence of a compressive synovial cyst. Ultrasound-guided aspiration of the cyst was performed, yielding clear synovial fluid and providing symptomatic relief. Post-procedure imaging showed a significant reduction in cyst size and alleviation of nerve compression. This case highlights the critical role of integrating sonography with clinical evaluations in diagnosing and managing atypical presentations of neuropathic pain and motor weakness. This advanced imaging capability not only effectively facilitated an accurate diagnosis but also enabled a targeted therapeutic intervention, thereby avoiding extensive surgical procedures and reducing the risk of nerve injury.<\/jats:p>","DOI":"10.3390\/diagnostics15020124","type":"journal-article","created":{"date-parts":[[2025,1,7]],"date-time":"2025-01-07T07:42:19Z","timestamp":1736235739000},"page":"124","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Rare Case of Elbow Synovial Cyst with Radial Nerve Compression"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-2815-6265","authenticated-orcid":false,"given":"Ting-Hsuan","family":"Hsu","sequence":"first","affiliation":[{"name":"Department of Physical Medicine and Rehabilitation, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yen-Nung","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Physical Medicine and Rehabilitation, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan"},{"name":"Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei 235, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2371","DOI":"10.1056\/NEJMcp2216734","article-title":"Lateral Epicondylitis","volume":"388","author":"Wolf","year":"2023","journal-title":"N. 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Med."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"376","DOI":"10.14366\/usg.22186","article-title":"Nerve entrapment syndromes: Detection by ultrasound","volume":"42","author":"Schwabl","year":"2023","journal-title":"Ultrasonography"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1007\/s00256-023-04374-9","article-title":"Ultrasound-guided injection and aspiration of small joints: Techniques, pearls, and pitfalls","volume":"53","author":"Flores","year":"2024","journal-title":"Skeletal Radiol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"668","DOI":"10.1302\/2058-5241.4.190002","article-title":"Soft tissue tumours of the elbow: Current concepts","volume":"4","author":"Savvidou","year":"2019","journal-title":"EFORT Open Rev."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1148\/radiol.211101","article-title":"Ultrasonography of Superficial Soft-Tissue Masses: Society of Radiologists in Ultrasound Consensus Conference Statement","volume":"304","author":"Jacobson","year":"2022","journal-title":"Radiology"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1007\/s10143-023-01944-2","article-title":"Radial nerve compression: Anatomical perspective and clinical consequences","volume":"46","author":"Karauda","year":"2023","journal-title":"Neurosurg. Rev."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"109115","DOI":"10.1016\/j.ijscr.2023.109115","article-title":"Compression of the posterior interosseous nerve secondary to a synovial cyst: Case report and review of the literature","volume":"114","author":"Boushabi","year":"2024","journal-title":"Int. J. Surg. Case Rep."},{"key":"ref_8","first-page":"93","article-title":"Posterior interosseous nerve palsy by synovial cyst of proximal radioulnar joint: Our experience after 5 years","volume":"55","author":"Monacelli","year":"2011","journal-title":"J. Neurosurg. Sci."},{"key":"ref_9","first-page":"6299","article-title":"Successful treatment of facet joint synovial cyst through percutaneous rupture: A case report","volume":"15","author":"Park","year":"2023","journal-title":"Am. J. Transl. Res."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"e940187","DOI":"10.12659\/MSM.940187","article-title":"Effectiveness of Needle Aspiration versus Surgical Excision for Symptomatic Synovial Cysts of the Hip: A Single-Center, Retrospective Study","volume":"29","author":"Chu","year":"2023","journal-title":"Med. Sci. Monit."}],"container-title":["Diagnostics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2075-4418\/15\/2\/124\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T10:24:24Z","timestamp":1759919064000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2075-4418\/15\/2\/124"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,1,7]]},"references-count":10,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2025,1]]}},"alternative-id":["diagnostics15020124"],"URL":"https:\/\/doi.org\/10.3390\/diagnostics15020124","relation":{},"ISSN":["2075-4418"],"issn-type":[{"value":"2075-4418","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,1,7]]}}}