Sunburn Cell

Any of the single, large, often bizarre, light-coloured keratinocytes with a pyknotic nucleus and eosinophilic cytoplasm which appear scattered along the basal layer of the epidermis after exposure to UVC or UVB radiation or UVA in the presence of psoralens. Sunburn cells undergo premature and abnormal keratinization and are the result of programmed cell death—apoptosis