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Keir J. Dermatoscopic features of cutaneous non-facial non-acral lentiginous growth pattern melanomas. Dermatol Pract Concept. 2014;4(1):77-82doi: 10.5826/dpc.0401a13.
Keir, J. (2014). Dermatoscopic features of cutaneous non-facial non-acral lentiginous growth pattern melanomas. Dermatology practical & conceptual, 4(1), 77-82. https://doi.org/10.5826/dpc.0401a13
Keir, Jeff. "Dermatoscopic features of cutaneous non-facial non-acral lentiginous growth pattern melanomas." Dermatology practical & conceptual vol. 4,1 (2014): 77-82. doi: https://doi.org/10.5826/dpc.0401a13
Keir J. Dermatoscopic features of cutaneous non-facial non-acral lentiginous growth pattern melanomas. Dermatol Pract Concept. 2014 Jan 31;4(1):77-82. doi: 10.5826/dpc.0401a13. eCollection 2014 Jan. PMID: 24520520; PMCID: PMC3919846.
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Dermatol Pract Concept. 2014 Jan 31;4(1):77-82. doi: 10.5826/dpc.0401a13. eCollection 2014 Jan.

Dermatoscopic features of cutaneous non-facial non-acral lentiginous growth pattern melanomas.

Dermatology practical & conceptual

Jeff Keir

Affiliations

  1. Department of Dermatology, School of Medicine, Cardiff University, Wales, UK; Northern Rivers Skin Cancer Clinic, Ballina, NSW, Australia.

PMID: 24520520 PMCID: PMC3919846 DOI: 10.5826/dpc.0401a13

Abstract

BACKGROUND: The dermatoscopic features of facial lentigo maligna (LM), facial lentigo maligna melanoma (LMM) and acral lentiginous melanoma (ALM) have been well described. This is the first description of the dermatoscopic appearance of a clinical series of cutaneous non-facial non-acral lentiginous growth pattern melanomas.

OBJECTIVE: To describe the dermatoscopic features of a series of cutaneous non-facial non-acral lentiginous growth pattern melanomas in an Australian skin cancer practice.

METHOD: Single observer retrospective analysis of dermatoscopic images of a one-year series of cutaneous non-facial, non-acral melanomas reported as having a lentiginous growth pattern detected in an open access primary care skin cancer clinic in Australia. Lesions were scored for presence of classical criteria for facial LM; modified pattern analysis ("Chaos and Clues") criteria; and the presence of two novel criteria: a lentigo-like pigment pattern lacking a lentigo-like border, and large polygons.

RESULTS: 20 melanomas occurring in 14 female and 6 male patients were included. Average patient age was 64 years (range: 44-83). Lesion distribution was: trunk 35%; upper limb 40%; and lower limb 25%. The incidences of criteria identified were: asymmetry of color or pattern (100%); lentigo-like pigment pattern lacking a lentigo-like border (90%); asymmetrically pigmented follicular openings (APFO's) (70%); grey blue structures (70%); large polygons (45%); eccentric structureless area (15%); bright white lines (5%). 20% of the lesions had only the novel criteria and/or APFO's.

LIMITATIONS: Single observer, single center retrospective study.

CONCLUSIONS: Cutaneous non-facial non-acral melanomas with a lentiginous growth pattern may have none or very few traditional criteria for the diagnosis of melanoma. Criteria that are logically expected in lesions with a lentiginous growth pattern (lentigo-like pigment pattern lacking a lentigo-like border, APFO's) and the novel criterion of large polygons may be useful in increasing sensitivity and specificity of diagnosis of these lesions. Further study is required to establish the significance of these observations.

Keywords: asymmetrically pigmented follicular openings; dermatoscopy; large polygons; lentiginous melanoma; lentigo maligna

References

  1. J Invest Dermatol. 2005 Oct;125(4):685-91 - PubMed
  2. J Am Acad Dermatol. 2008 Jun;58(6):1013-20 - PubMed
  3. Dermatol Pract Concept. 2012 Jul 31;2(3):203a08 - PubMed
  4. Arch Dermatol. 2008 Dec;144(12):1597-608 - PubMed
  5. Am J Dermatopathol. 2006 Feb;28(1):21-7 - PubMed
  6. Arch Dermatol. 2010 Dec;146(12):1444 - PubMed
  7. Arch Pathol Lab Med. 2011 Mar;135(3):337-41 - PubMed
  8. Arch Pathol Lab Med. 2011 Jul;135(7):838-41 - PubMed
  9. Dermatol Surg. 2003 Aug;29(8):827-8; discussion 829 - PubMed
  10. Arch Dermatol. 1998 May;134(5):563-8 - PubMed
  11. Clin Exp Dermatol. 2013 Aug;38(6):612-6 - PubMed
  12. Clin Dermatol. 2002 May-Jun;20(3):276-8 - PubMed
  13. Int J Dermatol. 2011 Jan;50(1):44-51 - PubMed
  14. Br J Dermatol. 1987 Mar;116(3):303-10 - PubMed
  15. Mod Pathol. 2006 Feb;19 Suppl 2:S34-40 - PubMed
  16. Aust Fam Physician. 2012 Jul;41(7):482-7 - PubMed

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