Thrombosed aneurysmal nonpatent ductus arteriosus: a case report.

We report our observations made clinically and by conventional radiography, ultrasound, computed tomography and MRI on a newborn full-term infant with a thrombosed patent aneurysmal ductus arteriosus of Botallo. The baby had no heart murmurs, but from the beginning of the 2nd day of life developed sinus tachycardia, especially when in a left-sided position, and dyspnoea mainly when drinking. From his 1st day of life we observed generalized muscular hypotonia and a tendency for hyperextension at neurological examination.