Sentinel lymph node biopsy in patients with thin melanomas : Frequency and predictors of metastasis based on analysis of two large international cohorts

Isaksson, Karolin (author): Lund University,Lunds universitet,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Lund Melanoma Study Group,Lund University Research Groups,Skåne University Hospital,Lund Univ, Sweden

Nielsen, Kari (author): Lund University,Lunds universitet,Dermatologi och venereologi, Lund,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Dermatology and Venereology (Lund),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund Melanoma Study Group,Lund University Research Groups,Helsingborg Hospital,Lund Univ, Sweden

Mikiver, Rasmus (author): Linköpings universitet,Linköping University,Institutionen för klinisk och experimentell medicin,Medicinska fakulteten,Region Östergötland, Regionalt Cancercentrum

Nieweg, Omgo E. (author): Royal Prince Alfred Hospital,University of Sydney,Univ Sydney, Australia; Royal Prince Alfred Hosp, Australia; Royal Prince Alfred Hosp, Australia

Scolyer, Richard A. (author): University of Sydney,Royal Prince Alfred Hospital,Univ Sydney, Australia; Royal Prince Alfred Hosp, Australia; Royal Prince Alfred Hosp, Australia

Thompson, John F. (author): Royal Prince Alfred Hospital,University of Sydney,Univ Sydney, Australia; Royal Prince Alfred Hosp, Australia; Royal Prince Alfred Hosp, Australia

Ingvar, Christian (author): Lund University,Lunds universitet,Kirurgi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Surgery (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund Melanoma Study Group,Lund University Research Groups,Skåne University Hospital,Lund Univ, Sweden

(creator_code:org_t)

2018-09-09
2018
English.
In: Journal of Surgical Oncology. - : Wiley. - 0022-4790 .- 1096-9098. ; 118:4, s. 599-605

Related links:: http://dx.doi.org/10...; show more...; https://lup.lub.lu.s...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Abstract Subject headings

Background: Sentinel lymph node (SLN) metastasis in patients with thin melanomas (≤1 mm) is uncommon but adverse prognostic factors may indicate an increased risk. We sought to determine how often SLN biopsy (SLNB) was performed in patients with thin melanomas, establish the frequency of SLN metastasis and evaluate the predictive value of ulceration, tumor mitotic rate, and thickness for SLN involvement. Methods: Melanoma patients with a Breslow thickness greater than or equal to 0.5 to less than or equal to 1 mm, diagnosed 2009-2016, were identified in the Swedish Melanoma Register (SMR) and the Melanoma Institute Australia (MIA) Database. Results: In total 8165 patients were included from the SMR and 1603 from MIA. SLNB was performed in 9.5% and 16.2% of patients, respectively. Corresponding figures for T1b (American Joint Committee on Cancer [AJCC] 7th Edition) were 19.5% and 24.6%. The SLN positivity rate were 4.4% (Sweden) and 5.8% (MIA). SLN metastasis was more frequent in tumors with ulceration, mitoses, and Breslow thickness greater than or equal to 0.9 mm but none were statistically significant. Younger age was identified as a significant risk factor for SLN positivity at MIA. Conclusions: A minority of patients with thin melanomas had SLNB performed and the SLN positivity rate was low. This study did not confirm tumor ulceration, mitoses, or thickness as statistically significant predictors for SLN metastasis.

By the author/editor: Isaksson, Karoli ...; Nielsen, Kari; Mikiver, Rasmus; Nieweg, Omgo E.; Scolyer, Richard ...; Thompson, John F ...; show more...; Ingvar, Christia ...; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Cancer and Oncol ...

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Surgery

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