Sebaceus hyperplasis

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Main PageBenign lesionsSebaceus hyperplasis
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Status update August 25, 2021
Status by Ralph P. Braun


Introduction [edit]

Sebaceous hyperplasia is a common and benign condition typically observed as single or multiple yellowish, soft, small papules commonly occurring on the forehead, cheeks and nose of middle-aged adults or elderly people.



Dermoscopy criteria
[edit]

  • Aggregated white-yellowish globules or structures (cumulus sign) surrounded by crown vessels (groups of bending, scarcely branching blood vessels that extend towards the center without crossing it) [1][2]
Sebaceous hyperplasia Figure 1.jpg


Sebaceous hyperplasia Figure 2.JPG


  • Other vascular structures which can be seen in sebaceous hyperplasias are arborizing telangiectasias [3].


Sebaceous hyperplasia Figure 3.jpg



  • Bonbon toffee sign: association of a central umbilication or small crater surrounded by white-yellowish globules or structures [4].


Sebaceous hyperplasia Figure 4.jpg


  • Occasionally, milia-like cysts may be present.



References:


  1. Bryden et al.: Dermatoscopic features of benign sebaceous proliferation. Clin. Exp. Dermatol. 2004;29:676-7. PMID: 15550152. DOI.
  2. Zaballos et al.: Dermoscopy of sebaceous hyperplasia. Arch Dermatol 2005;141:808. PMID: 15967945. DOI.
  3. Argenziano et al.: Vascular structures in skin tumors: a dermoscopy study. Arch Dermatol 2004;140:1485-9. PMID: 15611426. DOI.
  4. Oztas et al.: Bonbon toffee sign: a new dermatoscopic feature for sebaceous hyperplasia. J Eur Acad Dermatol Venereol 2008;22:1200-2. PMID: 18540985. DOI.