title: The cavum septi pellucidi: its appearance and incidence with cranial ultrasonography in infancy.
abstract: Head ultrasound examinations of 102 infants were reviewed for the presence of a cavum septi pellucidi (CSP). The CSP was seen in 42% of the entire population, 61% of premature infants, and 50% of full-term infants. The largest CSP measured 10 mm in width. The ultrasound image of the CSP is presented to familiarize radiologists with this normal structure, and the distinction between a dilated ventricular system and the CSP when imaging the fetus with ultrasound is discussed.
mesh_terms: D001921:Brain / Q000033:anatomy & histology; D002543:Cerebral Hemorrhage / Q000175:diagnosis; D002552:Cerebral Ventricles; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis / Q000473:pathology; D007223:Infant; D007231:Infant, Newborn; D012688:Septum Pellucidum; D014465:Ultrasonics; D014463:Ultrasonography