Ultrasound may show hypoechogenicity and mural thickening in active lesions, however more useful for superficial vessels
as carotids (5, 6).
Large PVs contain valves that direct flow from superficial vessels
to deep veins and generally run along the perforated artery .
These superficial vessels
originate from the convex and inferior surfaces of the liver and finally drain into several different lymph nodes.
Projection artifacts, which come from fluctuating shadows cast by blood cells flowing in the more superficial vessels
, affect visualization of the deeper retinal vascular structures [41-43].
Histological examination of the lesions on the patient's right breast and abdomen revealed a dermal-epidermal neutrophilic infiltrate with abscess, ulcer formation, and superficial vessels
with fibrin deposition (Fig.
Flash dye pulsed laser is a promising alternative to surgery that can achieve an selective photothermolysis and destruction of the superficial vessels
of the lesion .
Type C: superficial vessels
receive contributions from both median and ulnar arteries but without anastomosis.
Deeper-involved vessels appear blue and more superficial vessels
appear red, purple, or pink.
Other important causes are: Lack of sleep, hyperpigmentation, excessive vascularization due to medication like retin, a visible blood vessels due to fat loss, thin, aging skin, hereditary thinness or superficial vessels
, iron or other vitamin deficiency.
In 17% of cases (9), mycotic aneurysms have been identified as a complication of vertebral osteomyelitis, needle punctures or wounds overlying superficial vessels
When the superficial vessels
are overloaded, normal drainage pathways become congested, causing backflow to occur.
The superficial vessels
can be accurately located by Tran illumination; however, the inferior epigastria vessels cannot be located using that technique.