[Cranial ultrasound through posterolateral fontanelle in visualization of XXXX in preterm and term neonates].

@entity6804 @entity1 @entity548 @entity26282 @entity600 @entity509 @entity1647 @entity145 @entity76
OBJECTIVES: The aim of the study was to evaluate the usefulness of US in the diagnosis of @entity6804 in neonates by posterolateral fontanelle as compared with the anterior fontanelle approach and MRI. MATERIAL AND METHODS: US studies were performed on 1337 neonates, including 512 preterm @entity1 , through the anterior and posterolateral fontanelles. Abnormalities were detected in 134 @entity1 . Among them, abnormalities in posterior fossa were visualized with the posterolateral approach in 14 neonates. MR images were obtained in that subgrqup. RESULTS: The lesions consisted of @entity548 and @entity76 . Foci of @entity548 were visualized by US in preterm neonates (n = 5), only through the posterolateral approach and on MRI. @entity1647 (n = 2) were detected by US with both approaches and confirmed on MRI. In @entity26282 (n =2), US with both approaches, showed @entity76 and fluid in the posterior fossa. MRI, additionally visualized pontine @entity509 . Fluid collection in the posterior fossa and translocation of cerebellar hemispheres were observed in the other 6 neonates by US with both approaches. MRI revealed @entity145 (n = 2), mega cisterna magna (n = 3) and Blake's pouch (n = 1). CONCLUSIONS: US using posterolateral fontanelle is the method of choice for the diagnosis of @entity548 . These lesions are not visualized through anterior fontanelle. US visualization of the abnormal structures in some @entity76 has similar effectiveness for both approaches. MRI plays the crucial role in identification and differential diagnosis of these @entity600 .
