{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T12:22:46Z","timestamp":1756383766354,"version":"3.44.0"},"reference-count":21,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2017,8,23]]},"abstract":"<jats:p>We describe the case of a 71-year-old man with a ganglioneuroma of the retropharyngeal space. The patient presented with a submucosal bulge of the left oropharyngeal wall during follow-up examination of a treated vocal cord carcinoma. CT and MRI revealed a non-specific, well-defined retropharyngeal soft tissue lesion. Positron emission tomography-CT did not show relevant metabolic activity, excluding the hypothesis of metastatic nodal disease. Surgical biopsy of the lesion was compatible with ganglioneuroma. Ganglioneuromas are well-differentiated tumours composed of mature sympathetic ganglion cells that account for approximately 1% of spinal and paraspinal tumours. Peripherally, ganglioneuromas are predominantly found in the posterior mediastinum and retroperitoneal space. Only nine ganglioneuromas of the retropharyngeal space have been reported in the English literature since the early 1980s.<\/jats:p>","DOI":"10.1136\/bcr-2017-220966","type":"journal-article","created":{"date-parts":[[2017,9,7]],"date-time":"2017-09-07T06:42:44Z","timestamp":1504766564000},"page":"bcr-2017-220966","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Ganglioneuroma of the retropharyngeal space in a patient with glottic cancer"],"prefix":"10.1136","volume":"2017","author":[{"given":"Raquel Baptista","family":"Dias","sequence":"first","affiliation":[{"name":"Radiology Department, Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Duarte","family":"Rosa","sequence":"additional","affiliation":[{"name":"Radiology Department, Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miguel","family":"Rito","sequence":"additional","affiliation":[{"name":"Pathology Department, Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandra","family":"Borges","sequence":"additional","affiliation":[{"name":"Radiology Department, Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2017,9,7]]},"reference":[{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.1","doi-asserted-by":"crossref","first-page":"939","DOI":"10.1016\/j.ijporl.2010.01.015","article-title":"Massive retropharyngeal neurofibroma in a pediatric patient","volume":"74","author":"Piazza","year":"2010","journal-title":"Int J Pediatr Otorhinolaryngol"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.2","first-page":"E35","article-title":"Retropharyngeal masses in neurofibromatosis type 1: imaging findings in 2 cases","volume":"93","author":"Riascos","year":"2014","journal-title":"Ear Nose Throat J"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.3","doi-asserted-by":"publisher","DOI":"10.1016\/j.anorl.2015.11.003"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.4","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1253580"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.5","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1001\/jamaoto.2013.6068","article-title":"A retropharyngeal mass in a young boy","volume":"140","author":"Showmaker","year":"2014","journal-title":"JAMA Otolaryngol Head Neck Surg"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.6","doi-asserted-by":"crossref","first-page":"509","DOI":"10.3892\/ol.2012.767","article-title":"Multiple cervical ganglioneuroma: a case report and review of the literature","volume":"4","author":"Ma","year":"2012","journal-title":"Oncol Lett"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.7","doi-asserted-by":"publisher","DOI":"10.1200\/JCO.2006.08.8799"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.8","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1016\/S0090-3019(01)00363-9","article-title":"Bilateral and symmetric C1-C2 dumbbell ganglioneuromas producing severe spinal cord compression","volume":"55","author":"Ugarriza","year":"2001","journal-title":"Surg Neurol"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.9","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1148\/rg.231025050","article-title":"Neurogenic tumors in the abdomen: tumor types and imaging characteristics","volume":"23","author":"Rha","year":"2003","journal-title":"Radiographics"},{"key":"2025082704123251000_2017.sep06_1.bcr-2017-220966.10","unstructured":"Weiss SW , Goldblum JR . 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