Screening for Melanoma in At-Risk (Pediatric) Patients –Is This a Good Idea?

It would seem intuitive that screening for melanoma in at-risk pediatric patients would be worthwhile. And, this has been recommended in pediatric patients with inflammatory bowel disease who have received medications which increase the risk. However, a recent article (HG Welch et al. NEJM 2021; 384: 72-79. The Rapid Rise in Cutaneous Melanoma Diagnoses) provides a lot of reason to question this practice;. This article did not focus on pediatrics but its message about overdiagnosis of melanoma is applicable to this population as well.

Key points:

  • The increase in melanoma diagnosis (6-fold increase over 40 years) without a significant change in mortality (see Figure 4) indicates that the increase is primarily related to diagnostic scrutiny
  • This is driven by a fear of missing a diagnosis, medicolegal concerns and patient anxiety along with lower thresholds for referring to dermatology, lower thresholds for dermatologists to biopsy, and lower threshold by pathologists to diagnose melanoma
    • There are “no definitive diagnostic criteria for the pathological diagnosis of melanoma”
    • “The incidence of melanoma in situ is now 50 times as high as it was in 1975 (25 vs 0.5 per 100,000 population)…[yet there is a] lack of any appreciable effect in reducing the occurrence of invasive melanoma.”
  • Adverse consequences of unnecessary dermatology referrals: feeling vulnerable related to overdiagnosis of melanoma, increased costs, and difficulty obtaining life or health insurance
  • More “survivors” of melanoma overdiagnosis increase awareness of melanoma and can increase the cycle of overdiagnosis

My take: Routine visits to dermatology are difficult to justify in the absence of worrisome skin findings. “Although the conventional response has been to recommend regular skin checks, it is far more likely that more skin checks are the cause of the epidemic — not its solution.”

The Upside of Too Much Screen Time

Briefly noted: A recent study (Campbell LB, et al. J Pediatr 2015; 166: 1505-13) has shown a reducing incidence of melanoma in children and adolescents in the U.S. during the 2000-2010 study period.  This study used data from the Surveillance, Epidemiology, and End Results (SEER) cancer registry.  In adolescents, between 2003-2010, the rate of this very rare cancer decreased ~11% per year from 2003-2010.

While the authors do not know the reason for this improved trend, besides speculation about improved used of sunscreen, they also speculate that decreased time spent outdoors may be a factor.  My hunch is that this is a much more likely a contributor to this trend due to the pervasive nature of television, computers and other electronic devices.

Cumberland Island

Cumberland Island