|
Medical Information
Manifestation of
Venous Disease
Telangiectasia
Leg Telangiectasia
Treatment
Home |
|
Telangiectasia
Refers to superficial cutaneous vessels
visible to the human eye
These vessels measure 0.1 to 1 mm in diameter and represent a dilated venule, capillary or arteriole.
Arteriolar Telangiectasia-small in diameter, bright red in color, and do not protrude above the skin surface.
Venular Telangiectasia-wider, blue in color and often protrude
above the skin surface.
Capillary Telangiectasia-often initially fine red lesions but become larger and purple or blue with time because of venous backflow from increasing hydrostatic pressure.
Clinical Appearance-
telangiectasia are subdivided into four classifications
- Simple or Linear
- Arborizing
- Spider
- Papular
Red linear and arborizing telangiectasia is very common on the face, especially nose, mid-cheeks and chin. These lesions are also seen frequently on the legs.
Blue linear and arborizing telangiectasia are most often seen on the legs,
but also may be present on the face.
Cause of Telangiectasia
All forms of telangiectasia occur through the release or activation of vasoactive substances or under the influence of a variety of factors with the result of capillary or venular neogenesis. This release or activation of the vasoactive substances occurs under the influence of a variety of factors such as anoxia, estrogen, cortcosteroides (topical or systemic), various chemicals, multiple types of bacterial or viral infection and multiple physical factors. One of the most common physical factors in venous hypertension, caused by venous insufficiency. Recent studies have demonstrated that sapheno femoral venous valvular insufficiency as a primary condition may lead to deep venous valvular insufficiency. The later may show marked improvement or reversal to normal following high ligation and partial selective inversion stripping of the long saphenous vein.
|
|
