The steadily growing problem of lentigo maligna and lentigo maligna melanoma in Australia: Population‐based data on diagnosis and management

• Published in: Australasian journal of dermatology 2019-05, Vol.60 (2), p.118-125
• Main Authors: Guitera, Pascale, Collgros, Helena, Madronio, Christine M, Goumas, Christopher, Mann, Graham J, Watts, Caroline G, Pereira, Amanda R, Armstrong, Bruce K, Drummond, Martin, Morton, Rachael L, Scolyer, Richard A, Menzies, Scott W, Thompson, John F, Cust, Anne E
• Format: Article
• Language: English
• Subjects: Adult; Age Distribution; Aged; Aged, 80 and over; Australia - epidemiology; Biopsy; Diagnosis; Female; Head and neck; Head and Neck Neoplasms - epidemiology; Humans; Hutchinson's Melanotic Freckle - epidemiology; Hutchinson's Melanotic Freckle - surgery; Incidence; Invasiveness; lentigo maligna; lentigo maligna melanoma; Male; Management; Margins of Excision; Melanoma; Melanoma - epidemiology; Melanoma - surgery; Middle Aged; Population; population based; Primary care; Prospective Studies; Referral and Consultation - statistics & numerical data; Sex Distribution; Skin Neoplasms - epidemiology; Skin Neoplasms - surgery; specialist management
• ISSN: 0004-8380; 1440-0960
• DOI: 10.1111/ajd.12928

Background/Objectives There are limited population‐based data documenting the incidence and management of lentigo maligna (LM) and invasive lentigo maligna melanoma (LMM). We report the data on occurrence and management of LM and LMM in an Australian population. Methods Prospective collection of incidence and clinician‐reported management of melanoma in situ (MIS; n = 450, capped) and localised invasive melanoma (n = 3251) notified to the New South Wales Cancer Registry over 12‐months in 2006–2007. Results The estimated annual incidence of all MIS was 27.0 per 100 000 (LM 12.2, non‐LM MIS 5.9 and unclassified MIS 9.0). Patients with LM or LMM were on average approximately 10 years older than those with other melanoma subtypes (P