[Aneurysm of Valsalva's sinus (author's transl)].

An aneurysm of Valsalva's sinus is one of the rarest malformations of the aortic root. The case of a non-ruptured aneurysm is reported and the possible pathogenic mechanisms of the congenital and the acquired forms of this aneurysm are discussed, as well as the clinical symptoms and the diagnostic procedures. Finally, the necessity of surgical treatment of the aneurysm is pointed out.