Monitoring Patients at Extreme Risk for Melanoma

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Monitoring Patients at Extreme Risk for Melanoma
Monitoring Patients at Extreme Risk for Melanoma

(HealthDay News) -- Monitoring patients at extreme risk with total-body photography (TBP) and sequential digital dermoscopy imaging (SDDI) assists with early diagnosis of primary melanoma, according to a study published online in JAMA Dermatology.

Fergal J. Moloney, MD, from the University of Sydney, and colleagues compared six-month full-body examination versus TBP in 311 patients (February 2006 to February 2011). Patients had either a history of invasive melanoma and dysplastic nevus syndrome, a history of invasive melanoma and at least three first-degree or second-degree relatives with prior melanoma, a history of at least two primary invasive melanomas, or a CDKN2A or CDK4 gene mutation.

RELATED: Skin Cancer Resource Center

The researchers found that there were 75 primary melanomas detected over a median of 3.5 years of follow-up, including 14 at the baseline visit. TBP detected 38%, and 39% were detected with SDDI.

Breslow thickness of >1 mm was seen in five melanomas, three of which were histologically desmoplastic, while the other two had nodular components.

By year 2, the cumulative risk of developing a novel primary melanoma was 12.7%, with new primary melanoma incidence during the final 3 years of follow-up half of that seen during the first 2 years (incidence density ratio, 0.43; P = 0.002).

"Hypervigilance for difficult-to-detect thick melanoma subtypes is crucial," the researchers wrote.


  1. Moloney FJ, Guitera P, Coates E, et al. Detection of Primary Melanoma in Individuals at Extreme High Risk: A Prospective 5-Year Follow-Up Study. JAMA Dermatol. 2014;doi:10.1001/jamadermatol.2014.514.

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