Trends in the diagnosis and clinical features of melanoma in situ (MIS) in US men and women: A prospective, observational study

Erin X. Wei, Abrar A. Qureshi, Jiali Han, Tricia Y. Li, Eunyoung Cho, Jennifer Y. Lin, Wen Qing Li

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background The incidence of melanoma in situ (MIS) is increasing, but little is known about its clinical and epidemiologic features. Objective We sought to determine trends in diagnosis and clinical features of MIS. Methods Incident cases of melanoma were collected prospectively from the Nurses' Health Study (1976-2010) and Health Professionals Follow-up Study (1986-2010). Results MIS incidence increased from 2 to 42 per 100,000 person-year among women, and from 11 to 73 per 100,000 person-year among men, exceeding the rate of increase of invasive melanomas. Melanoma mortality initially increased during the follow-up period then plateaued. Men were more likely than women to develop in situ melanomas on the upper half of the body (P < .001). Invasive melanomas were diagnosed at a younger age than MIS (P < .001), and were more likely to be found on the lower extremities than MIS (P < .001). Limitations This is a strictly descriptive study without examination into mechanisms. Conclusion We found epidemiologic and clinical differences for in situ and invasive melanomas, which support further examination into the variations in etiologic pathways. The lack of improvement in mortality despite the increase in detection of in situ relative to invasive lesions further highlights the need to improve invasive melanoma-specific clinical screening features.

Original languageEnglish (US)
Pages (from-to)698-705
Number of pages8
JournalJournal of the American Academy of Dermatology
Volume75
Issue number4
DOIs
StatePublished - Oct 1 2016

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Observational Studies
Melanoma
Prospective Studies
Mortality
Incidence
Health
Lower Extremity
Nurses

Keywords

  • age
  • anatomic sites
  • epidemiology
  • gender
  • incidence
  • invasive malignant melanoma
  • lentigo maligna
  • melanoma
  • melanoma in situ
  • melanoma screening
  • occupational cohorts

ASJC Scopus subject areas

  • Dermatology

Cite this

Trends in the diagnosis and clinical features of melanoma in situ (MIS) in US men and women : A prospective, observational study. / Wei, Erin X.; Qureshi, Abrar A.; Han, Jiali; Li, Tricia Y.; Cho, Eunyoung; Lin, Jennifer Y.; Li, Wen Qing.

In: Journal of the American Academy of Dermatology, Vol. 75, No. 4, 01.10.2016, p. 698-705.

Research output: Contribution to journalArticle

Wei, Erin X. ; Qureshi, Abrar A. ; Han, Jiali ; Li, Tricia Y. ; Cho, Eunyoung ; Lin, Jennifer Y. ; Li, Wen Qing. / Trends in the diagnosis and clinical features of melanoma in situ (MIS) in US men and women : A prospective, observational study. In: Journal of the American Academy of Dermatology. 2016 ; Vol. 75, No. 4. pp. 698-705.
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N2 - Background The incidence of melanoma in situ (MIS) is increasing, but little is known about its clinical and epidemiologic features. Objective We sought to determine trends in diagnosis and clinical features of MIS. Methods Incident cases of melanoma were collected prospectively from the Nurses' Health Study (1976-2010) and Health Professionals Follow-up Study (1986-2010). Results MIS incidence increased from 2 to 42 per 100,000 person-year among women, and from 11 to 73 per 100,000 person-year among men, exceeding the rate of increase of invasive melanomas. Melanoma mortality initially increased during the follow-up period then plateaued. Men were more likely than women to develop in situ melanomas on the upper half of the body (P < .001). Invasive melanomas were diagnosed at a younger age than MIS (P < .001), and were more likely to be found on the lower extremities than MIS (P < .001). Limitations This is a strictly descriptive study without examination into mechanisms. Conclusion We found epidemiologic and clinical differences for in situ and invasive melanomas, which support further examination into the variations in etiologic pathways. The lack of improvement in mortality despite the increase in detection of in situ relative to invasive lesions further highlights the need to improve invasive melanoma-specific clinical screening features.

AB - Background The incidence of melanoma in situ (MIS) is increasing, but little is known about its clinical and epidemiologic features. Objective We sought to determine trends in diagnosis and clinical features of MIS. Methods Incident cases of melanoma were collected prospectively from the Nurses' Health Study (1976-2010) and Health Professionals Follow-up Study (1986-2010). Results MIS incidence increased from 2 to 42 per 100,000 person-year among women, and from 11 to 73 per 100,000 person-year among men, exceeding the rate of increase of invasive melanomas. Melanoma mortality initially increased during the follow-up period then plateaued. Men were more likely than women to develop in situ melanomas on the upper half of the body (P < .001). Invasive melanomas were diagnosed at a younger age than MIS (P < .001), and were more likely to be found on the lower extremities than MIS (P < .001). Limitations This is a strictly descriptive study without examination into mechanisms. Conclusion We found epidemiologic and clinical differences for in situ and invasive melanomas, which support further examination into the variations in etiologic pathways. The lack of improvement in mortality despite the increase in detection of in situ relative to invasive lesions further highlights the need to improve invasive melanoma-specific clinical screening features.

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