Nonbacterial thrombotic endocarditis complicating mitral valve prolapse presenting as Parinaud's syndrome--a case report.

Nonbacterial thrombotic endocarditis is the most common form of endocarditis found at autopsy. Systemic embolization may complicate this condition in patients with mitral valve prolapse. The authors report a case of mitral valve prolapse and nonbacterial thrombotic endocarditis in which the presenting feature was Parinaud's syndrome.