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Changes in the presentation of nodular and superficial spreading melanomas over 35 years†
Article first published online: 5 NOV 2008
Copyright © 2008 American Cancer Society
Volume 113, Issue 12, pages 3341–3348, 15 December 2008
How to Cite
Warycha, M. A., Christos, P. J., Mazumdar, M., Darvishian, F., Shapiro, R. L., Berman, R. S., Pavlick, A. C., Kopf, A. W., Polsky, D. and Osman, I. (2008), Changes in the presentation of nodular and superficial spreading melanomas over 35 years. Cancer, 113: 3341–3348. doi: 10.1002/cncr.23955
Patients enrolled in the NYU Melanoma Cooperative Group Database between 1972 and 1982 gave verbal informed consent. Subsequent approval to use data from these patients was obtained from the NYU Institutional Review Board (IRB). Prospective accrual of patients from August 2002 to the present has been approved by the NYU IRB, with written informed consent obtained from all patients at the time of enrollment.
- Issue published online: 4 DEC 2008
- Article first published online: 5 NOV 2008
- Manuscript Accepted: 14 JUL 2008
- Manuscript Revised: 10 JUL 2008
- Manuscript Received: 23 MAY 2008
- NYU Cancer Center Core. Grant Number: 5 P30 CA 016087-27
- Chemotherapy Foundation Grant
- nodular melanoma;
- superficial spreading melanoma;
- histopathologic subtype;
- clinicopathologic characteristics
Nodular melanoma (NM) may be biologically aggressive compared with the more common superficial spreading melanoma (SSM), with recent data suggesting underlying genetic differences between these 2 subtypes. To better define the clinical behavior of NMs, the authors compared their clinical and histopathologic features to those of SSMs at their institution, a tertiary referral center, over 3 decades.
A total of 1684 patients diagnosed with 1734 melanomas were prospectively enrolled. Of these, 1143 patients (69% SSM, 11% NM, 20% other) were diagnosed between 1972 and 1982; 541 patients (54% SSM, 23% NM, 23% other) were diagnosed between 2002 and the present. Differences between the features of NM and SSM within each time period as well as changes over time were analyzed.
The authors found that SSMs are now diagnosed as thinner lesions (P < .0001) with a low incidence of histologic ulceration (P < .0001), whereas there was no significant change in the median tumor thickness or ulceration status of NMs over time (P = .10, P = .30, respectively). The median age at diagnosis of NM, however, did significantly increase over time (51 years to 63 years, P < .01). The median duration of NMs was reported to be only 5 months compared with 9 months in SSM patients.
The authors' data suggest that improvements have been made in the early detection of SSM but not NM. Modifications of current screening practices, including increased surveillance of high-risk patients with an emphasis on the “E” for “evolution” criterion of the ABCDE acronym used for early detection of melanoma, are thus warranted. Cancer 2008. © 2008 American Cancer Society.