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.
- 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) 
- Other vascular structures which can be seen in sebaceous hyperplasias are arborizing telangiectasias .
- Bonbon toffee sign: Association of a central umbilication or small crater surrounded by white-yellowish globules or structures .
- Occasionally, milia-like cysts may be present.
- Bryden et al.: Dermatoscopic features of benign sebaceous proliferation. Clin. Exp. Dermatol. 2004;29:676-7. PMID: 15550152. DOI.
- Zaballos et al.: Dermoscopy of sebaceous hyperplasia. Arch Dermatol 2005;141:808. PMID: 15967945. DOI.
- Argenziano et al.: Vascular structures in skin tumors: a dermoscopy study. Arch Dermatol 2004;140:1485-9. PMID: 15611426. DOI.
- 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.