Premature newborn with apnea and bradycardia

US and MRI of periventricular leukomalacia and porencephaly
Coronal US of the brain on day of life 3 (above left) shows bilateral increased periventricular echogenicity. Coronal US of the brain on day of life 30 (above right) shows the previously seen areas of increased periventricular echogenicity to have undergone cystic transformation bilaterally. Axial T2 MRI without contrast of the brain at 3 months of age (below) shows an irregular contour and appearance to the occipital horns of the lateral ventricles.

The diagnosis was bilateral periventricular leukomalacia resulting in bilateral porencephaly.