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Primary Raynaud\u2019s phenomenon (i.e., Raynaud disease) must be distinguished from secondary Raynaud\u2019s phenomenon (i.e., Raynaud syndrome) as long-term morbidity and outcomes differ vastly between the two conditions. Additionally, the practitioner must differentiate between Raynaud\u2019s phenomenon and related vascular disorders, such as acrocyanosis, pernio, and livedo reticularis. In this article, we review differences between the conditions and suggest an approach to diagnosis and treatment strategy for these disorders.<\/jats:p>","DOI":"10.1177\/1358863x20983455","type":"journal-article","created":{"date-parts":[[2021,2,13]],"date-time":"2021-02-13T06:29:51Z","timestamp":1613197791000},"page":"56-70","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":40,"title":["Raynaud\u2019s phenomenon and related vasospastic disorders"],"prefix":"10.1177","volume":"26","author":[{"given":"Eunjung","family":"Choi","sequence":"first","affiliation":[{"name":"Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5968-1216","authenticated-orcid":false,"given":"Stanislav","family":"Henkin","sequence":"additional","affiliation":[{"name":"Heart and Vascular Center, Dartmouth-Hitchcock Medical 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