{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T22:40:49Z","timestamp":1786747249839,"version":"build-2736575974"},"reference-count":7,"publisher":"BMJ","issue":"12","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2022,12,7]]},"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:p>Keratocystoma of the parotid gland is a rare benign tumour, with only a handful of case reports in literature. We report a case of a man in his 70s who presented to the head and neck clinic with a 2-month history of a gradually increasing left neck swelling. Fine-needle aspiration showed contents of an epidermal cyst; however, an MRI showed a solid\/cystic mass with a low T2 signal, suggesting increased risk of malignancy. The patient went on to have a left superficial parotidectomy and level IIa supraselective neck dissection. The lesion contained laminated keratin and was lined by squamous epithelium, with nodal extension. Features were those of a keratocystoma; metastatic cystic well-differentiated squamous cell carcinoma was not favoured. This is the first reported case of a parotid keratocystoma with nodal extension of the lesion. This case report demonstrates that surgical excision and clinical monitoring can be a safe management strategy for these benign tumours.<\/jats:p>","DOI":"10.1136\/bcr-2022-252039","type":"journal-article","created":{"date-parts":[[2022,12,19]],"date-time":"2022-12-19T11:17:26Z","timestamp":1671448646000},"page":"e252039","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":7,"title":["Parotid gland keratocystoma: a rare diagnosis of a neck lump"],"prefix":"10.1136","volume":"15","author":[{"given":"Abethan","family":"Anparasan","sequence":"first","affiliation":[{"name":"Pathology department, Aberdeen Royal Infirmary, Aberdeen, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stanislau","family":"Makaranka","sequence":"additional","affiliation":[{"name":"Ear, Nose and Throat department, Aberdeen Royal Infirmary, Aberdeen, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Brown","sequence":"additional","affiliation":[{"name":"Pathology department, Aberdeen Royal Infirmary, Aberdeen, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Panagiotis","family":"Asimakopoulos","sequence":"additional","affiliation":[{"name":"Ear, Nose and Throat department, Aberdeen Royal Infirmary, Aberdeen, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2022,12,19]]},"reference":[{"key":"2025082803270502000_15.12.e252039.1","doi-asserted-by":"crossref","first-page":"S142","DOI":"10.1017\/S0022215116000566","article-title":"Management of salivary gland tumours: United Kingdom national multidisciplinary guidelines","volume":"130","author":"Sood","year":"2016","journal-title":"J Laryngol Otol"},{"key":"2025082803270502000_15.12.e252039.2","unstructured":"Bradley PJ . Controversies in the management of salivary gland disease. 2nd ed. Oxford: Oxford University Press; 2013. Available: https:\/\/oxfordmedicine.com\/view\/10.1093\/med\/9780199578207.001.0001\/med-9780199578207-chapter-002 [Accessed 17 Jul 2022]."},{"key":"2025082803270502000_15.12.e252039.3","doi-asserted-by":"publisher","DOI":"10.1002\/hed.2890080309"},{"key":"2025082803270502000_15.12.e252039.4","doi-asserted-by":"crossref","first-page":"40","DOI":"10.1007\/s12105-022-01420-1","article-title":"Update from the 5th edition of the world Health organization classification of head and neck tumors: salivary glands","volume":"16","author":"Sk\u00e1lov\u00e1","year":"2022","journal-title":"Head Neck Pathol"},{"key":"2025082803270502000_15.12.e252039.5","unstructured":"Gnepp DR , Bishop JA . Gnepp\u2019s diagnostic surgical pathology of the head and neck. 3rd ed. Amsterdam: Elsevier, 2020."},{"key":"2025082803270502000_15.12.e252039.6","doi-asserted-by":"publisher","DOI":"10.1136\/jcp.2010.076521"},{"key":"2025082803270502000_15.12.e252039.7","doi-asserted-by":"publisher","DOI":"10.1097\/01.MP.0000026053.67284.A3"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2022-252039","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T10:27:12Z","timestamp":1756376832000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2022-252039"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12]]},"references-count":7,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2022,12,19]]},"published-print":{"date-parts":[[2022,12]]}},"alternative-id":["10.1136\/bcr-2022-252039"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2022-252039","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,12]]}}}