Linear irregular vessels

From dermoscopedia

Main PageVascular structuresLinear irregular vessels
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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun
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Description This chapter covers 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 orregular vesselsThis glossary term has not yet been described.
Author(s) Ralph P. Braun
Responsible author Ralph Braun→ send e-mail
Status released
Status update June 28, 2019
Status by Ralph P. Braun


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Linear irregularlinear vessels with multiple bends or serpentine vesselslinear irregular vessels with multiple bends. Seen with flat BCC and melanoma are red vascular structuresThis glossary term has not yet been described. with a range of size, shape, and distribution [1].

Linear irregular vessels schematics.jpg



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
Linear irregular vessels can be identified in melanomaThis glossary term has not yet been described., basal cell carcinomas, and dysplastic neviThis glossary term has not yet been described. [2][3]. In one study, 33.3% of melanomas had these vessels, with a PPV of 67.6% [1]. In another study of amelanotic/hypomelanotic melanomaThis glossary term has not yet been described. (AHMamelanotic/hypomelanotic melanoma), linear–irregular vessels were seen in 10.3% of thin AHM (<1 mm), in 0% of thick AHM (>1mm), and 0% in amelanotic/hypomelanotic benign melanocyticThis glossary term has not yet been described. lesions[4]. Thus, similar to dotted vesselstiny pinpoint vessels, the presence of these vessels suggests that the melanoma is still relatively thin.


MelanomaThis glossary term has not yet been described. showing linear irregularlinear vessels with multiple bends vessels




ReferencesThis is material contained in a footnote or bibliography holding further information.
  1. 1.01.1 Argenziano et al.: Vascular structuresThis glossary term has not yet been described. in skin tumors: a dermoscopy study. Arch Dermatol 2004;140:1485-9. PMID: 15611426. DOI.
  2. Zell et al.: Early diagnosis of multiple primary amelanotic/hypomelanotic melanoma using dermoscopy. Dermatol Surg 2008;34:1254-7. PMID: 18554289. DOI.
  3. Braun et al.: 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.: what's new?. Clin. Dermatol. 2009;27:26-34. PMID: 19095151. DOI.
  4. Pizzichetta et al.: Amelanotic/hypomelanotic melanoma: clinical and dermoscopic features. Br. J. Dermatol. 2004;150:1117-24. PMID: 15214897. DOI.