|Description||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 crown vesselsRadial serpentine or arborizing vessels at the periphery of the lesion that radiate towards the center but do not cross the midline of the lesion. sebaceous hyperplasia|
|Author(s)||Ralph P. Braun|
|Responsible author||Ralph Braun → send e-mail|
|Status update||June 29, 2017|
|Status by||Ralph P. Braun|
Crown vesselsRadial serpentine or arborizing vessels at the periphery of the lesion that radiate towards the center but do not cross the midline of the lesion. sebaceous hyperplasia comprise linear, curved vesselscomma vessels - linear curved short vessels - dermal nevi monomorphous vessels: one type of vessel dominates with minimal branching, situated along the periphery and extending toward the center without crossing it, giving the appearance of a crown.
Differential diagnosisis the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines with variations in the use of logic, analytics, and experience to determine "cause and effect". In systems engineering and computer science, it is typically used to determine the causes of symptoms, mitigations, and solutions
Crown vessels are characteristic of sebaceous hyperplasiaThis glossary term has not yet been described.; this pattern was seen in 83.3% of sebaceous hyperplasia with a PPV of 83.3%. Crown vessels may also be seen in molluscum contagiosumThis glossary term has not yet been described. .
ReferencesThis is material contained in a footnote or bibliography holding further information.:
- Argenziano et al.: Vascular structures in skin tumors: a dermoscopy study. Arch Dermatol 2004;140:1485-9. PMID: 15611426. DOI.
- Zaballos et al.: Dermoscopy of sebaceous hyperplasia. Arch Dermatol 2005;141:808. PMID: 15967945. DOI.
- Morales et al.: Dermoscopy of molluscum contagiosum. Arch Dermatol 2005;141:1644. PMID: 16365277. DOI.