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Five occurred in toenails and three in fingernails. Histologically, SEI is characterized by bulbous proliferation of rete ridges and unilocular cysts lined by thin squamous epithelium with hypogranulosis, filled with orthokeratin. The connection to the nail bed epithelium may be disrupted and calcified. SEI are tumors that should be kept in the differential diagnosis of the subungual nail bed lesions.<\/jats:p>","DOI":"10.1111\/cup.14830","type":"journal-article","created":{"date-parts":[[2025,6,11]],"date-time":"2025-06-11T06:59:11Z","timestamp":1749625151000},"page":"574-579","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Subungual Epidermoid Inclusions\u2013A Series of 8 Cases and a Review of Literature"],"prefix":"10.1111","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9336-6591","authenticated-orcid":false,"given":"Sarah M.","family":"Alnaqshabandi","sequence":"first","affiliation":[{"name":"Pathology &amp; Laboratory Medicine Institute Cleveland Clinic  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4341-9613","authenticated-orcid":false,"given":"Anurag","family":"Sharma","sequence":"additional","affiliation":[{"name":"Pathology &amp; Laboratory Medicine, London Health Sciences Center Western University  London Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0511-3958","authenticated-orcid":false,"given":"Ahmed","family":"Bakhshwin","sequence":"additional","affiliation":[{"name":"Department of Pathology King Abdulaziz University  Jeddah Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shira","family":"Ronen","sequence":"additional","affiliation":[{"name":"Pathology &amp; Laboratory Medicine Institute Cleveland Clinic  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0629-775X","authenticated-orcid":false,"given":"Jennifer S.","family":"Ko","sequence":"additional","affiliation":[{"name":"Pathology &amp; Laboratory Medicine Institute Cleveland Clinic  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2278-5908","authenticated-orcid":false,"given":"Steven D.","family":"Billings","sequence":"additional","affiliation":[{"name":"Pathology &amp; Laboratory Medicine Institute Cleveland Clinic  Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,6,11]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102133.1959.tb13427.x"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102133.1965.tb14672.x"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaad.2006.08.004"},{"issue":"26","key":"e_1_2_8_5_1","first-page":"1464","article-title":"Epidermoid Cyst of the Terminal Phalanx of the Thumb","volume":"90","author":"Bobra S. 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