Congenital Aneurysms of All Three Sinuses of Valsalva.

Aneurysm of a single sinus of Valsalva, though rare, is not so rare as to justify a detailed description of a single case. For it is recognized that both syphilis and ulcerative endocarditis may produce aneurysms or aneurysmal dilatations of the sinuses, and the causation is not obscure. In a small number of such aneurysms no evidence of these two causes has been found and it has been suggested that they may be congenital ; at least eleven such cases have been recorded, mostly involving the right (or anterior) sinus only. But aneurysms of all three sinuses of Valsalva are extremely rare. I have been able to find records of only three such cases, and comparison of these with the one here reported suggests that it presents a condition that has not been recorded previously.