Skin melanocytic tumor
Nevi
Meyerson nevus
Author: Christopher S. Hale, M.D.
Last author update: 1 February 2017
Last staff update: 11 September 2020
Copyright: 2003-2024, PathologyOutlines.com, Inc.
PubMed Search: Meyerson nevus
Table of Contents
Definition / general | Terminology | Epidemiology | Sites | Case reports | Treatment | Dermoscopy | Microscopic (histologic) description | Differential diagnosisCite this page: Hale CS. Meyerson nevus. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/skintumormelanocyticmeyersonsnevus.html. Accessed April 20th, 2024.
Definition / general
- First described in 1971 (Arch Dermatol 1971;103:510)
- Solitary, pruritic, erythematous eruption encircling a pre-existing pigmented nevus
Terminology
- Also called halo dermatitis (Br J Dermatol 1988;118:125)
Epidemiology
- Young adults > children (Pediatr Dermatol 1992;9:275)
- No apparent anatomic or gender predilection in children (Pediatr Dermatol 2009;26:292)
Sites
- Usually trunk and proximal upper extremities
Case reports
- 12 year old boy with seven nevi on trunk (Dermatol Online J 2008;14:28)
- 25 year old man with two nevi on abdomen (An Bras Dermatol 2010;85:681)
Treatment
- Wait (may regress) or excision
- Does not recur or progress to melanoma (Australas J Dermatol 2008;49:191)
- Possibly topical steroids (J Cutan Med Surg 2010;14:30)
Dermoscopy
- Meyerson phenomenon does not modify dermatoscopic characteristics (An Bras Dermatol 2010;85:681)
Microscopic (histologic) description
- Epidermal spongiosis and dermal inflammation (CD3+ lymphocytes) associated with a usual type junctional or compound nevus
- At most mild atypia, no regression (by definition)
Differential diagnosis
- Atypical nevi: may have eczematous halos: see J Am Acad Dermatol 1996;34:357
