The given value "Blood vessels are critical to the survival and growth of cells and tissues. The rate of growth and ultimate tumor size, whether benign or malignant, is governed at least in part by the tumor’s ability to derive ample blood flow to support the metabolic demands of its cells. Therefore, tumors may manifest signs of an increase in blood vessels and flow. This is readily observed in many basal cell carcinomas (BCCs) in which the clinical morphology often reveals telangiectasias. Although other tumors may not clinically manifest vasculature, vessels are indeed present but may be of small caliber or situated deeper within the skin. Dermoscopy, by providing magnification and visual access to subepidermal structures, has per- mitted clinicians to observe many of these vessels. " contains strip markers and therefore it cannot be parsed sufficiently.
|Author(s)||Ralph P. Braun|
|Responsible author||Ralph Braun → send e-mail|
|Status update||June 28, 2019|
|Status by||Ralph P. Braun|
It has the following subchapters:
TerminologyThe system of terms belonging or peculiar to a science, art or specialized subject / nomenclature.This glossary term has not yet been described.This glossary term has not yet been described.
Currently two different terminologies are used: the descriptive terminologyTerminology using descriptive terms and the metaphoric terminologyThis glossary term has not yet been described.. dermoscopediaDermoscopedia is the name of this website and is providing state of knowledge information concerning dermoscopy - a non invasive diagnostic method. uses both approaches because most individuals are more familiar with the metaphoric terms than with the descriptive terms.
A table with the descriptive vessel terminology can be found here,
Follicular Red DotsDots are small, round structures of less than 0.1 mm in diameter that have a red color when corresponding to blood vessels; however, when due to melanin, their color ranges from black, brown, to blue-gray depending on the depth and concentration of the melanin in the skin (Tyndall effect).
Another more recently described vascular feature is the pattern of follicular red dotsDots are small, round structures of less than 0.1 mm in diameter that have a red color when corresponding to blood vessels; however, when due to melanin, their color ranges from black, brown, to blue-gray depending on the depth and concentration of the melanin in the skin (Tyndall effect)., which have been described in active discoid lupus erythematosusis a chronic skin condition of sores with inflammation and scarring favouring the face, ears, and scalp and at times on other body areas. These lesions develop as a red, inflamed patch with a scaling and crusty appearance. The centre areas may appear lighter in colour with a rim darker than the normal skin.. The follicular red dots are seen surrounding the hair follicle openingsThis glossary term has not yet been described. and consist of regularly distributed, concentric reddish dots in a region of alopecia. This may represent dilation of blood vessels with extravasation of red blood cells surrounding the widened infundibula.
ReferencesThis is material contained in a footnote or bibliography holding further information.:
- An Atlas of Dermoscopy, Second Edition. Marghoob A. et al. CRC Press; 2012.