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| Caption = Differentiated vulvar intraepithelial neoplasia. [[H&E stain]]. | | Caption = Differentiated vulvar intraepithelial neoplasia. [[H&E stain]]. | ||
| Synonyms = | | Synonyms = VIN simplex, simplex-type VIN | ||
| Micro = thickening of the stratum spinosum ([[acanthosis]]), elongation of rete ridges with bridging/anastomoses between rete ridges, nuclear atypia - esp. basal layer, nuclei in stratum corneum (parakeratosis), +/-atypical mitoses | | Micro = thickening of the stratum spinosum ([[acanthosis]]), elongation of rete ridges with bridging/anastomoses between rete ridges, nuclear atypia - esp. basal layer, nuclei in stratum corneum (parakeratosis), +/-atypical mitoses | ||
| Subtypes = | | Subtypes = |
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