A Comparative Study of Dermatoscopic Features of Melasma and Hori’s Nevus in Asian Patients

dc.contributor.authorRattananukrom T.
dc.contributor.otherMahidol University
dc.date.accessioned2023-06-20T05:33:26Z
dc.date.available2023-06-20T05:33:26Z
dc.date.issued2022-03-01
dc.description.abstractBACKGROUND: Dermatoscopy is a noninvasive diagnostic tool for pigmented lesions. However, data regarding dermatoscopic features in melasma and Hori’s nevus, which are commonly found in Asian populations, are still lacking. In addition, melasma coexisting with Hori’s nevus presents a particular diagnostic challenge and they generally require different treatments. OBJECTIVE: We sought to describe the dermatoscopic features of melasma and Hori’s nevus and to establish diagnostic clues for each condition. METHODS: Fifty patients with melasma and 46 patients with Hori’s nevus were enrolled in the study. Dermatoscopic pictures were taken with Dermlite DL200 HR (3Gen, San Juan Capistrano, Califorinia) and evaluated by two blinded board-certified dermatologists. RESULTS: The dermatoscopic features more prominently seen in melasma compared to Hori’s nevus include light brown pigmentation (98% vs. 10.9%, P<0.001), regular pigment network (38% vs. 2.2%, P<0.001), irregular pigment network (98% vs. 63%, P<0.001), arcuate structure (68% vs. 13%, P<0.001), circles (48% vs. 10.9%, P<0.001), sparing of follicles and sweat gland openings (98% vs. 4.3%, P<0.001), and telangiectasias (52% vs. 19.6%, P=0.001). In contrast, the common features of Hori’s nevus include blue-brown or grey pigmentation (63% vs. 0%, P=0.001) and speckled homogenous pattern (52.2% vs. 0%, P<0.001). CONCLUSION: Dermatoscopy is a useful diagnostic tool for distinguishing between melasma and Hori’s nevus. In patients with coexistence of both conditions, dermatoscopy can be used to confirm the diagnosis and aid the proper treatment.
dc.identifier.citationJournal of Clinical and Aesthetic Dermatology Vol.15 No.3 (2022) , 16-20
dc.identifier.issn19412789
dc.identifier.scopus2-s2.0-85132752344
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/20.500.14594/87353
dc.rights.holderSCOPUS
dc.subjectMedicine
dc.titleA Comparative Study of Dermatoscopic Features of Melasma and Hori’s Nevus in Asian Patients
dc.typeArticle
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85132752344&origin=inward
oaire.citation.endPage20
oaire.citation.issue3
oaire.citation.startPage16
oaire.citation.titleJournal of Clinical and Aesthetic Dermatology
oaire.citation.volume15
oairecerif.author.affiliationRamathibodi Hospital

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