Pili annulati (also known as "ringed hair") is a genetic trait in which the hair seems ‘banded‘ by alternating segments of light and dark color when seen in reflected light. : 767 : 640

See also
Pili pseudoannulati
List of cutaneous conditions

References
External links
Hair Transplant
The determination to perform surgery is usually based upon the diameter of the aortic root (with 5 centimeters being a rule of thumb - a normal size is 2-3 centimeters) and the rate of increase in its size (as determined through repeated echocardiography).An alternative to surgical repair or a ruptured aneurysm is percutaneous closure. In this technique, a wire is introduced via a small incision in the groin and advanced through the vascular system to the aneurysm. A closure device is advanced along the wire before being expanded to straddle the site of rupture. Prognosis
If a sinus of Valsalva aneurysm ruptures, the life expectancy without treatment is approximately four years. Surgery carries a 1% risk of intra-operative death with higher risks associated with infected aneurysms, and 5- to 10-year survival rates following surgery range from 82-97%. Epidemiology
Aneurysms of the sinuses of Valsalva are estimated to affect 0.09% of the population. Rupture of a sinus of Valsalva can occur at any age. Rupture is five times more likely to occur in those of far eastern than western ethnic backgrounds, and is twice as likely to occur in males than females. History
The first description of sinus of Valsalva aneurysm was made in 1939. See also
Aortic aneurysm
Thoracic aortic aneurysm
Abdominal aortic aneurysm

References


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