Research Article
Incidental Cutaneous Reaction Patterns: Epidermolytic Hyperkeratosis, Acantholytic Dyskeratosis, and Hailey-Hailey-Like Acantholysis: A Potential Marker of Premalignant Skin Change
| Diagnosis | Histology |
| Epidermolytic hyperkeratosis | Perinuclear vacuolization of keratinocytes in the upper epidermis, irregular keratohyaline granules, and compact hyperkeratosis |
| Focal acantholytic dyskeratosis | Acantholysis and dyskeratosis at all levels of the epidermis, suprabasalar clefting, hyperkeratosis, and parakeratosis |
| Hailey-Hailey-like acantholysis | Prominent acantholysis at all epidermal levels with epidermal hyperplasia and often suprabasal clefting |
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