Infectious ductal aneurysm after coil embolization in an infant.

We report a case of ductal aneurysm after transcatheter coil embolization in an infant. The aneurysm was asymptomatic and was not detected until it ruptured during surgical intervention. We suspect that the aneurysm was induced by methicillin-resistant Staphylococcus aureus infection, as the resected aneurysmal wall was severely infiltrated by inflammatory cells and the patient had recurrent methicillin-resistant Staphylococcus aureus infection. We recommend remaining on guard against formation of a ductal aneurysm after coil embolization, especially in patients with associated recurrent bacteremia.