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Showing posts with label crown vessels. Show all posts
Showing posts with label crown vessels. Show all posts

Tuesday, 6 November 2007

Sebaceous hyperplasia

Sebaceous hyperplasia is usually not a difficult clinical diagnosis when the yellow color is so pronounced like in this case. In dermoscopy we can see aggregated white-yellow nodules , surrounded by branching vessels that extend towards the center of the lesion without crossing it: these crown vessels (radial wreath-like) are typical of the vessels observed in sebaceous hyperplasia.
The thicker vessels around the lesion are couperosis.

Thursday, 6 September 2007

Sebaceous hyperplasia


A 51-year-old woman consulted for yellowish- whitish papular lesions on her forehead.













Dermoscopy showed aggregated white-yellow nodules (see white circles), surrounded by branching vessels that extend towards the center of the lesion without crossing it: these crown vessels (radial wreath-like) are typical of the vessels observed in sebaceous hyperplasia.



















Aggregated white-yellow nodules and crown vessels ( radial wreath-like) are the 2 key signs for dermoscopic diagnosis of a sebaceous hyperplasia.