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eyeliner sign
Wednesday 27 December 2017
Definition: “Eyeliner sign” is seen in squamous cell carcinoma in situ. Atypical keratinocytes fill epidermis but spare basal layer (line of normal basal keratinocytes under the atypical ones resembles eyeliner 👁).
Melanoma in situ does not have this pattern.
Images
“Eyeliner sign” is seen in squamous cell carcinoma in situ.