Sonographic findings in a neonate with Cobb syndrome.

Cobb syndrome (cutaneomeningospinal angiomatosis) is a rare phacomatosis characterized by vascular abnormality of the spinal cord associated with a vascular naevus at the same metamere. We report the case of a newborn with Cobb syndrome, diagnosed by sonography of the spine and later confirmed by MRI. In neonates and young infants with dermatomal cutaneous vascular abnormalities, sonography of the spine should be used as the first imaging modality.