{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T20:04:04Z","timestamp":1783454644534,"version":"3.55.0"},"reference-count":15,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T00:00:00Z","timestamp":1777334400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T00:00:00Z","timestamp":1777334400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Dermatology"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Blaschkitis is an acquired Blaschko\u2010linear inflammatory dermatosis similar to classic lichen striatus. Although the pathomechanisms have not yet been fully elucidated, it has been reported that some cases were triggered by viral infections, vaccines, or drugs. We recently encountered a patient who developed multiple broad bands of erythematous papular plaques accompanied by vesicles along Blaschko lines on the left side of the trunk while taking sitagliptin, a dipeptidyl peptidase\u20104 inhibitor (DPP\u20104i) for type 2 diabetes mellitus. Histopathology showed necrotic keratinocytes in the epidermis accompanied by subepidermal blisters with infiltration of CD8\u2010positive T cells and eosinophils in the upper dermis. Negative direct and indirect immunofluorescence ruled out DPP\u20104i\u2010associated bullous pemphigoid. Within 1\u2009week after withdrawal of DPP\u20104i, the skin lesions resolved, with no subsequent relapse. Furthermore, the distribution of the lesions along Blaschko lines is suggestive of cutaneous mosaicism and may be associated with immune\u2010inflammatory responses induced by DPP\u20104i. Based on the clinical characteristics of this case, we speculate that DPP\u20104i activated T lymphocytes, which subsequently reacted to mosaic skin areas and induced blaschkitis. Accordingly, the diagnosis was DPP\u20104i\u2010associated blaschkitis. We report this case together with a review of the relevant literature on drug\u2010induced blaschkitis and lichen striatus.<\/jats:p>","DOI":"10.1111\/1346-8138.70296","type":"journal-article","created":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T05:07:07Z","timestamp":1777439227000},"page":"1048-1052","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Drug\u2010Induced Blaschkitis Associated With Dipeptidyl Peptidase\u20104 Inhibitor: A Case Report and Review of the Literature"],"prefix":"10.1111","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-7179-2546","authenticated-orcid":false,"given":"Yasunori","family":"Suzaki","sequence":"first","affiliation":[{"name":"Department of Dermatology Kawasaki Medical School  Kurashiki Japan"},{"name":"Jonan Dermatology Clinic  Marugame Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3701-5575","authenticated-orcid":false,"given":"Yumi","family":"Aoyama","sequence":"additional","affiliation":[{"name":"Department of Dermatology Kawasaki Medical School  Kurashiki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,28]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/1346\u20108138.17809"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/ced.15144"},{"issue":"1","key":"e_1_2_9_4_1","first-page":"9","article-title":"Blaschkite de L'Adulte","volume":"117","author":"Grosshans E.","year":"1990","journal-title":"Annales de Dermatologie et de V\u00e9n\u00e9r\u00e9ologie"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1346\u20108138.2010.00847.x"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525\u20101470.2007.00550.x"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365\u20102133.2010.10053.x"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/ijd.13143"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.136.6.805"},{"issue":"3","key":"e_1_2_9_10_1","first-page":"251","article-title":"Cas Pour Diagnostic","volume":"120","author":"Plantin P.","year":"1993","journal-title":"Annales de Dermatologie et de V\u00e9n\u00e9r\u00e9ologie"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1080\/00015550410025282"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ad.2010.03.027.te"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00105\u2010010\u20102121\u20106"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jaad.2013.11.039"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdcr.2015.05.002"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jid.2023.04.017"}],"container-title":["The Journal of Dermatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/1346-8138.70296","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/1346-8138.70296","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/1346-8138.70296","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T18:47:06Z","timestamp":1783450026000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/1346-8138.70296"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,28]]},"references-count":15,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2026,7]]}},"alternative-id":["10.1111\/1346-8138.70296"],"URL":"https:\/\/doi.org\/10.1111\/1346-8138.70296","archive":["Portico"],"relation":{},"ISSN":["0385-2407","1346-8138"],"issn-type":[{"value":"0385-2407","type":"print"},{"value":"1346-8138","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,28]]},"assertion":[{"value":"2025-12-11","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-04-20","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-04-28","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}