![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgU_BQXsrGPK3oRhmsQC8EGmRe33utXj5CNCRW77XUmzHfChTCEKIgFwfdnOrzwb_QwpP58hVV122phPHhrohvUPRTER3eEBpRXMUeYja3gY4HOm71wsqMCHBzEZkSjl14rq4fb_SmCxno/s400/KS1.jpg)
A 47-year-old woman consulted for this dark pigmented lesion on her neck.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhiL5TbJJWgpLhiPnNbvmfFZCr4ezKCwSjNcpFWYElxZZOSm-cgVHDmYxM0W6vOM68qyNqgia2df1XCYhOBTBDVel70Cie_PuZ0sM0pIH9N2HhVwCpMYujf8Z_Vy5bBQeknQWlTlDBalEk/s400/KS2.jpg)
Dermoscopy featured comedo-like openings (yellow arrows) and crypts (red arrow). There was no pigment network and the lesion was sharp demarcated.
These different criteria were in favor of a seborrheic keratosis.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQL-cAtHZfopBsgNjQFvSLme7bNWVc9cTxZ3pXA0lg8xKJSehXT6wVAAgbvEUVs54TE1uzO7QOT-eKG6MRvyodK-mUx32DJ5LQI_qW71yjvg6hj_aPPjzfTmZI0uwPcPJzsWgxHcRBYtA/s400/KS3.jpg)
It is important to remind that no single criterion by itself is diagnostic and an accurate and complete examination of the different dermoscopic features is necessary before diagnosing a seborrheic keratosis.