Sebaceous hyperplasia

From dermoscopedia

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Description This chapter describes dermoscopy of sebaceous hyperplasia
Author(s) Ignacio Gómez Martín · Pedro Zaballos
Responsible author Pedro Zaballos→ send e-mail
Status unknown
Status update July 13, 2017
Status by Ralph P. Braun


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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

  • 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.