Dilated Pore of Winer

Dilated Pore of Winer

David Cassarino, MD, PhD

Dilated pore of Winer (DPW) at low-power examination shows a follicular structure with a dilated opening filled with keratin debris. This lesion shows focal rupture and associated inflammation image.

Intermediate magnification of a DPW shows the acanthotic squamous lining epithelium with focal fingerlike projections image and mild basilar hyperpigmentation image.



  • Dilated pore of Winer (DPW)


  • Enlarged follicular structure with acanthotic squamous lining and central keratin-filled space



Jul 8, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Dilated Pore of Winer

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