{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T00:02:19Z","timestamp":1756339339618,"version":"3.44.0"},"reference-count":17,"publisher":"BMJ","issue":"1","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,12,10]]},"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:p>Ganglion cysts are commonly found in areas of constant mechanical stress such as the joints and tendons of the wrist or hand as well as the anterior aspect of the ankle. In the knee, parameniscal cysts are often encountered secondary to meniscal tears or articular degeneration. Intra-articular ganglion cysts are uncommon and often arise from the cruciate ligaments and are found in the intercondylar notch. However, ganglion cysts arising from collateral ligaments are very rare. We present a rare case of a boy in early childhood with non-specific medial joint line swelling and discomfort and was diagnosed with a medial collateral ligament ganglion cyst after multimodality imaging. To our knowledge, this is the first case documented in children.<\/jats:p>","DOI":"10.1136\/bcr-2024-263611","type":"journal-article","created":{"date-parts":[[2025,1,25]],"date-time":"2025-01-25T06:35:29Z","timestamp":1737786929000},"page":"e263611","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Medial collateral ligament ganglion cyst: a rare cause of medial knee pain"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6987-6698","authenticated-orcid":false,"given":"Ruhaid","family":"Khurram","sequence":"first","affiliation":[{"name":"Department of Radiology, Royal Free London NHS Foundation Trust, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rashed","family":"Al-Khudairi","sequence":"additional","affiliation":[{"name":"Department of Radiology, Royal Free London NHS Foundation Trust, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandros","family":"Maris","sequence":"additional","affiliation":[{"name":"Department of Trauma and Orthopaedics, Royal Free London NHS Foundation Trust, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,1,25]]},"reference":[{"key":"2025082622513927000_18.1.e263611.1","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1007\/s13244-013-0240-1","article-title":"MRI characteristics of cysts and 'cyst-like' lesions in and around the knee: what the radiologist needs to know","volume":"4","author":"Perdikakis","year":"2013","journal-title":"Insights Imaging"},{"key":"2025082622513927000_18.1.e263611.2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-003-0372-9"},{"key":"2025082622513927000_18.1.e263611.3","doi-asserted-by":"crossref","DOI":"10.1186\/1471-2474-13-137","article-title":"Ganglion cysts of the cruciate ligaments: a series of 31 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