Disparities in the management of cutaneous malignant melanoma. A population-based high-resolution study

Eur J Cancer Care (Engl). 2019 Jul;28(4):e13043. doi: 10.1111/ecc.13043. Epub 2019 Apr 16.


Population-based cancer registry data from three Spanish areas were used to assess the patterns of care and adherence to guidelines for cutaneous malignant melanoma. We included 934 cases diagnosed in 2009-2013. Completeness of the pathology reports, imaging for detecting distant metastasis and the use of sentinel lymph node biopsy (SLNB) were analysed. The proportion of pathology reports that mentioned the essential pathological features required for T staging was 93%, ranging across geographic areas from 81% to 98% (p < 0.001). The percentage of low-risk patients who underwent no imaging studies, as proposed by guidelines, or only chest imaging ranged among areas from 0.6% to 84% (p < 0.001). Of the patients with clinically node-negative melanoma >1 mm thick and no distant metastases, 68% underwent SLNB, varying by area from 61% to 78% (p = 0.017). This study revealed wide geographic variation in different aspects of melanoma care. The use of a standardised structured pathology report could strengthen the completeness of reporting. Improvement strategies should also include efforts to reduce overuse of imaging in low-risk patients and to increase the adherence to guidelines recommendations on the use of SLNB.

Keywords: cancer care; clinical practice guidelines; cutaneous melanoma; geographic variation; guideline-adherence; healthcare disparities; imaging; pathology reporting; population-based cancer registries; sentinel lymph node biopsy.

Publication types

  • Comparative Study
  • Multicenter Study

MeSH terms

  • Adult
  • Aged
  • Diagnostic Imaging / standards
  • Diagnostic Imaging / statistics & numerical data
  • Female
  • Guideline Adherence
  • Healthcare Disparities*
  • Humans
  • Lymph Node Excision / standards
  • Lymph Node Excision / statistics & numerical data
  • Lymphatic Metastasis
  • Male
  • Melanoma / pathology
  • Melanoma / surgery*
  • Middle Aged
  • Practice Guidelines as Topic / standards
  • Retrospective Studies
  • Sentinel Lymph Node Biopsy / standards
  • Sentinel Lymph Node Biopsy / statistics & numerical data
  • Skin Neoplasms / pathology
  • Skin Neoplasms / surgery*
  • Spain

Supplementary concepts

  • Melanoma, Cutaneous Malignant