Sebaceous hyperplasia

From dermoscopedia

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 Authored by: Ignacio Gómez Martín     ·  Pedro Zaballos

 Keywords:   sebaceous hyperplasia
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Description This chapter describes dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections. of sebaceous hyperplasiaThis glossary term has not yet been described.
Author(s) Ignacio Gómez Martín · Pedro Zaballos
Owner Pedro Zaballos→ send e-mail
Status unknown
Status update July 13, 2017
Status by Ralph P. Braun


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Sebaceous Hyperplasia

Common benignis any condition that is harmless in the long run condition typically observed as single or multiple yellowish, soft, small papules commonly occurring on forehead, cheeks and nose of middle aged adults or elderly people.

Sebaceous hyperplasia Figure 1.jpg

Sebaceous hyperplasia Figure 2.JPG

DermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections. criteriameasure of how well one variable or set of variables predicts an outcome:

  • Aggregated white-yellowish globules or structuresThis glossary term has not yet been described. (cumulus sign) surrounded by crown vesselsRadial serpentine or arborizing vessels at the periphery of the lesion that radiate towards the center but do not cross the midline od the lesion. sebaceous hyperplasia (Groups of bending, scarcely branching blood vesselsare the part of the circulatory system, and microcirculation, that transports blood throughout the human body that extend towards the center without crossing it) [1][2] FiguresThis glossary term has not yet been described. 1 & 2.
  • Other vascular structuresThis glossary term has not yet been described. which can be seen in sebaceous hyperplasias are arborizing telangiectasias [3]. Figure 3.
  • Bonbon toffee sign: Association of a central umbilication or small crater surrounded by white-yellowish globules or structures [4]. Figure 4.
  • Occasionally, milia-like cystsThis glossary term has not yet been described. may be present.

    Sebaceous hyperplasia Figure 3.jpg

Sebaceous hyperplasia Figure 4.jpg



ReferencesThis is material contained in a footnote or bibliography holding further information.:

  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.