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Due to the numerous BCC and history of multiple and early-onset BCC, examination was concerning for a hereditary BCC syndrome. Subsequent histopathology confirmed BCC. Genetic testing was negative for basal cell nevus syndrome and clinical findings were inconsistent with other known hereditary BCC syndromes. There have been reports of an association between DM1 and BCC, however, it is not well known among clinicians. We hope to raise awareness among clinicians about this association.<\/jats:p>","DOI":"10.1136\/bcr-2018-227233","type":"journal-article","created":{"date-parts":[[2019,3,9]],"date-time":"2019-03-09T05:15:19Z","timestamp":1552108519000},"page":"e227233","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Multiple basal cell carcinomas in a patient with myotonic dystrophy type 1"],"prefix":"10.1136","volume":"12","author":[{"given":"Jessica","family":"Feng","sequence":"first","affiliation":[{"name":"University of Massachusetts Medical School, Worcester, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Avery","family":"LaChance","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Brigham and Women\u2019s Hospital, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David A","family":"Sinclair","sequence":"additional","affiliation":[{"name":"Department of Genetics, Harvard Medical School, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maryam M","family":"Asgari","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA"},{"name":"Department of Population Medicine, Harvard Pilgrim Health Care, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2019,3,8]]},"reference":[{"key":"2025082701292268000_12.3.e227233.1","doi-asserted-by":"publisher","DOI":"10.1097\/WCO.0000000000000128"},{"key":"2025082701292268000_12.3.e227233.2","first-page":"226","article-title":"[Multiple basaliomas in Curschmann-Steinert myotonia atrophica]","volume":"37","author":"Stieler","year":"1986","journal-title":"Hautarzt"},{"key":"2025082701292268000_12.3.e227233.3","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2133.1999.03184.x"},{"key":"2025082701292268000_12.3.e227233.4","doi-asserted-by":"publisher","DOI":"10.1007\/s001050051298"},{"key":"2025082701292268000_12.3.e227233.5","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0190-9622(03)00125-7","article-title":"Tissue and tumor mosaicism of the myotonin protein kinase gene trinucleotide repeat in a patient with multiple basal cell carcinomas associated with myotonic dystrophy","volume":"50","author":"Ba\u00f1uls","year":"2004","journal-title":"J Am Acad Dermatol"},{"key":"2025082701292268000_12.3.e227233.6","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1111\/j.1365-4632.2004.02583.x","article-title":"Multiple basal cell carcinomas in a patient with myotonic dystrophy type 1","volume":"45","author":"Saponaro","year":"2006","journal-title":"Int J Dermatol"},{"key":"2025082701292268000_12.3.e227233.7","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2230.2009.03321.x"},{"key":"2025082701292268000_12.3.e227233.8","doi-asserted-by":"publisher","DOI":"10.1007\/s00403-009-0997-8"},{"key":"2025082701292268000_12.3.e227233.9","doi-asserted-by":"crossref","unstructured":"Miraglia E , Cantisani C , Giustini S , et al . 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