{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T11:14:52Z","timestamp":1783509292064,"version":"3.55.0"},"reference-count":16,"publisher":"MDPI AG","issue":"2","funder":[{"name":"Fundamental Research Funds of Chinses Academy of Agricultural Sciences","award":["Y2019YJ07-01"],"award-info":[{"award-number":["Y2019YJ07-01"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["31941002"],"award-info":[{"award-number":["31941002"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"The National Key Research and Development Program of China","award":["2021YFD1800100"],"award-info":[{"award-number":["2021YFD1800100"]}]},{"name":"The National Key Research and Development Program of China","award":["2021YFD1801300"],"award-info":[{"award-number":["2021YFD1801300"]}]},{"name":"The Major Science and Technology Project of Gansu Province","award":["20ZD7NA006"],"award-info":[{"award-number":["20ZD7NA006"]}]},{"name":"The Research funding from Lanzhou Veterinary Research Institute","award":["CAAS-ASTIP-JBGS-20210101"],"award-info":[{"award-number":["CAAS-ASTIP-JBGS-20210101"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,3]]},"abstract":"<jats:p>Ganglion cysts are relatively common entities, but intraneural ganglia within peripheral nerves are rare and poorly understood. We present a case of a 51-year-old man who presented with acute left dropfoot. Initial magnetic resonance imaging (MRI) was misinterpreted as common peroneal neuritis consistent with a traction injury corroborated by the patient\u2019s history. However, after surgical decompression and external neurolysis were performed, the patient\u2019s symptoms worsened. Repeated MRI revealed an intraneural ganglion cyst of the common peroneal nerve with connection to the superior tibiofibular joint by means of its anterior recurrent branch that was evident retrospectively on preoperative MRI. It is crucial to carefully inspect atypical cases to further recognize and appreciate the dynamic aspect of this disease or \u201croller-coaster\u201d phenomenon. Intraneural ganglion cysts rely heavily on intraneural and extraneural pressure gradients for propagation, which can be drawn from the expanded work of the unifying articular theory. This report emphasizes the importance of understanding the pathoanatomical and hydraulic factors to appropriately identify and treat intraneural ganglion cysts. Increased recognition of this pathologic entity as a differential diagnosis for acute onset dropfoot is also highlighted.<\/jats:p>","DOI":"10.7547\/20-252","type":"journal-article","created":{"date-parts":[[2022,4,28]],"date-time":"2022-04-28T11:02:54Z","timestamp":1651143774000},"source":"Crossref","is-referenced-by-count":1,"title":["Acute-Onset Footdrop Caused by Intraneural Ganglion Cyst of the Common Peroneal Nerve: The Effects of Extraneural Pressure Gradients on Cyst Propagation"],"prefix":"10.3390","volume":"112","author":[{"given":"Samantha L.","family":"Williams","sequence":"first","affiliation":[{"name":"JFK Medical Center, Atlantis, FL."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James T.","family":"Clancy","sequence":"additional","affiliation":[{"name":"JFK Medical Center, Atlantis, FL."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel S.","family":"Williamson","sequence":"additional","affiliation":[{"name":"MRI Specialists, Boynton Beach, FL."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","reference":[{"key":"B1","series-title":"Consid\u00e9rations sur l\u2019Organisation de l\u2019OEil Et sur l\u2019Op\u00e9ration de la Cataracte Appliqu\u00e9e au Traitement des Animaux Domestiques\/pr\u00e9sent\u00e9s et soutenues \u00e0 la Facult\u00e9 de m\u00e9decine de Paris le 19 janvier 1809. par M Beauch\u00eane fils","first-page":"01311","author":"Beauch\u00eane M","year":"1809","unstructured":"Beauch\u00eane M. 1809. 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