Benign melanocytic lesions mimicking melanomas

Pathology
Martin G Cook

Abstract

Review of problematic melanocytic consultation cases has enabled identification of the most common variants of benign melanocytic proliferations which can be confused with melanoma. Apart from Spitz naevus, the most common in this group of lesions are pigmented spindle cell naevus and atypical dermal nodule. Potentially the most problematic but less common are pseudomelanoma following incomplete removal of a naevus and 'activated' benign naevus cells in sentinel lymph nodes. By considering the overall architecture and the degree of nuclear atypia of the lesions, all of these problems can usually be resolved. Nuclear or architectural abnormalities by themselves are insufficient and must be assessed together. In addition, the combinations of pattern and cytological change in most of the lesions described here are distinctive and have become recognised as known variations of benign entities.

References

Aug 1, 1995·Journal of Cutaneous Pathology·M A MooneyM G Buxton
May 1, 1994·Histopathology·M E FallowfieldM G Cook
May 1, 1994·Journal of the American Academy of Dermatology·N J Ball, L E Golitz
Jul 1, 1996·The American Journal of Surgical Pathology·K F CarsonA J Cochran
Jul 1, 1997·Histopathology·G CollinaM G Cook

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Citations

Jul 14, 2007·The British Journal of Dermatology·E A WestR A G Parslew
Nov 6, 2007·Journal of Cellular and Molecular Medicine·G PalmieriA Cossu
Jul 27, 2007·Virchows Archiv : an International Journal of Pathology·Guido Massi
Jan 31, 2020·The American Journal of Dermatopathology·Lauren S MohanPedram Gerami
May 26, 2018·The American Journal of Surgical Pathology·Timothy VandenBoomPedram Gerami
Dec 1, 2017·Anais Brasileiros De Dermatologia·Danielle Carvalho QuintellaTullia Cuzzi

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