Histology: dilated pore of winer
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Image Name: dilated_pore_of_winer_1_060220   File Type: jpg
Diagnosis: DILATED PORE OF WINER   Category: neoplasm, adnexal, follicular /
neoplasm, benign
Morphology: papule   Organization: discrete / warty
Pattern: solitary   Color: pink
Body Site: forehead   Age: 58 years
Gender: female   Image Year: 2006
Magnification:20x   Stain: hematoxylin and eosin
Contributor: Greg Hosler, MD, PhD   First  Published: February 27, 2006
Description:Histologic sections of skin show a central follicular structure with a dilated cavity opening to the surface. The epithelial lining is thickened, with small projections emanating into the surrounding dermis. A small cyst is present within the lining. The cavity is filled with loose keratin.
Comments:This lesion was removed from the forehead of a middle aged woman, a typical presentation. The histology in this case is also typical. The differential diagnosis would include a pilar sheath acanthoma, trichofolliculoma, and a large comedone. The dilated pore of Winer has more open of a cavity and more clear of a connection with the epidermis than the pilar sheath acanthoma, although these entities have overlapping features. The trichofolliculoma is usually more complex, with secondary and often tertiary follicles arising from the central cavity. A large comedone would not have the epithelial projections shown in this case.
Related Links:
Other Resources: PubMed: dilated pore of winer OMIM: dilated pore of winer
MedlinePlus: dilated pore of winer Archives of Dermatology: dilated pore of winer
eMedicine: dilated pore of winer Dermatology Online: dilated pore of winer
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Bernard A. Cohen, MD, Christoph U. Lehmann, MD
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