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A female in her 70s presented with a right EAC mass accompanied by itching. We initially diagnosed the mass as a ceruminous gland adenoma (CGA) following excisional biopsy. Two years and nine months later, the tumor recurred at the same site. A preoperative computed tomography (CT) scan demonstrated no bone destruction, and magnetic resonance imaging (MRI) showed a 1 \u00d7 1 cm mass with a clearly defined margin in the right EAC. We completely excised the recurrent tumor using a transmeatal approach under general anesthesia. Histopathology demonstrated haphazard proliferation of tubule-glandular structures lined by two layers of the epithelium in the hypocellular stroma composed of a mucoid matrix. The recurring tumor was diagnosed as a CPA. Here, an EAC tumor\u2014originally diagnosed as a CGA following excisional biopsy\u2014recurred and was subsequently diagnosed as a CPA. CPA can be considered an unusual variant of CGA.<\/jats:p>","DOI":"10.1177\/01455613231158802","type":"journal-article","created":{"date-parts":[[2023,2,16]],"date-time":"2023-02-16T07:49:11Z","timestamp":1676533751000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Pleomorphic Adenoma of the External Auditory Canal From Ceruminous Gland Adenoma: Case Report and Review of the Literature"],"prefix":"10.1177","volume":"104","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0507-8184","authenticated-orcid":false,"given":"Koji","family":"Nishimura","sequence":"first","affiliation":[{"name":"Teikyo University Hospital, Mizonokuchi"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kana","family":"Nagahara","sequence":"additional","affiliation":[{"name":"Teikyo University Hospital, Mizonokuchi"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nobuhiro","family":"Hakuba","sequence":"additional","affiliation":[{"name":"Teikyo University Hospital, Mizonokuchi"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,2,16]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/1097-0142(19821215)50:12<2873::aid-cncr2820501230>3.0.co;2-r"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12105-022-01450-9"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/00000478-200403000-00003"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1159\/000075230"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.1017\/s0022215100080920"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.114.6.954"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1177\/014556131109000706"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1980.00790250015004"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1017\/s0022215100103020"},{"key":"e_1_3_4_11_2","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-198303000-00016"},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1288\/00005537-197710000-00001"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-006-0166-z"},{"key":"e_1_3_4_14_2","doi-asserted-by":"publisher","DOI":"10.1177\/2050313X18777147"},{"key":"e_1_3_4_15_2","doi-asserted-by":"publisher","DOI":"10.1155\/2015\/359627"},{"key":"e_1_3_4_16_2","doi-asserted-by":"publisher","DOI":"10.5222\/MMJ.2021.36974"},{"key":"e_1_3_4_17_2","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1951.03750050076008"},{"key":"e_1_3_4_18_2","doi-asserted-by":"publisher","DOI":"10.3390\/medicina56050248"},{"key":"e_1_3_4_19_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-005-0933-2"},{"issue":"3","key":"e_1_3_4_20_2","first-page":"E1","article-title":"Pleomorphic adenoma of the external auditory canal: a case report and review of the literature","volume":"89","author":"Ayers LS","year":"2010","unstructured":"Ayers LS, Depasquale K, Marlowe FI, Ghaderi M. 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