China
Africa
Explore chapters and articles related to this topic
Paediatrics
Published in Vincent Helyar, Aidan Shaw, The Final FRCR, 2017
Thickened, smooth cortex with slight indentation at the Sylvian fissures.May be localised to a single lobe and usually the cerebellum is spared.Dilated occipital horns of the lateral ventricles (i.e. colpocephaly).
Test Paper 1
Published in Teck Yew Chin, Susan Cheng Shelmerdine, Akash Ganguly, Chinedum Anosike, Get Through, 2017
Teck Yew Chin, Susan Cheng Shelmerdine, Akash Ganguly, Chinedum Anosike
CT and MRI show colpocephaly (enlarged occipital horn and atria), ‘batwing’ configuration of frontal horns on coronal view (pointing inferiorly secondary to enlarged caudate nucleus), ‘hourglass ventricle’, excessive cortical gyration (stenogyria), interdigitation of medial cortical gyri, ‘cerebellar peg sign’, thin elongated fourth ventricle exiting below the foramen magnum, dysplastic tentorium, towering cerebellum, tethered cord and cervico-medullary kink among multiple other cranial and spinal anomalies.
Paediatrics
Published in Dave Maudgil, Anthony Watkinson, The Essential Guide to the New FRCR Part 2A and Radiology Boards, 2017
Dave Maudgil, Anthony Watkinson
The following are associated with Chiari II malformation. True or false? Lacunar skull.Beaked tectum of midbrain.Cerebral heterotopia.Colpocephaly.Holoprosencephaly.
Assessment of foetal ventriculomegaly from prenatal to early postnatal period: a single-centre retrospective cohort study
Published in Journal of Obstetrics and Gynaecology, 2022
Nurullah Cihan Sohret, Ayse Neslihan Tekin, Ozge Surmeli Onay, Kamuran Suman, Ozge Aydemir, Melih Velipasaoglu
Foetal VM was considered isolated if no additional cerebral/extracerebral structural abnormalities, chromosomal abnormalities or foetal infection were discovered during the antenatal period. In the present study, 60% of 87 cases evaluated were non-isolated and 40% of them were isolated VM cases. The rate of non-isolated cases were 47.5% in mild VM group, 92% in severe VM group. In a study conducted by Chang et al. (1) with 234 VM cases, 36.7% of the cases were isolated and 63.3% were non-isolated, while Tugcu et al. (2014) reported that they detected anomaly in 48% of the cases while 52% of them were isolated cases. In the same study, it was reported that accompanying anomalies were detected in 37% of mild VM cases, and 100% in severe cases. At this point MRI is a superior method in the evaluation of migration defects, white matter structures and other organs where USG is insufficient. Di Mascio et al. (2019) showed that anomalies that could not be detected in antenatal USG were detected by foetal MRI at a rate of 10% in their review. In addition, they reported that according to the foetal MRI result, findings that would significantly change the follow-up and treatment process were detected in 4.6% of the cases. In our study, it was observed that foetal MRI was performed in 22 cases, pathological findings were detected in 21 cases and colpocephaly was found the most common anomaly. Mild VM was found in 53% of the foetuses who underwent foetal MRI. Chiari Malformation Type-2 was detected in one patient aetiologically.
Measurement of Fetal Mesencephalon and Pons Via Ultrasonographic Cross Sectional Imagining
Published in Fetal and Pediatric Pathology, 2018
Ruiqi Yang, Rui Li, Xuejuan Liu, Limei Fan, Jialing Zhang, Libo Wang, Hong Teng
Dysplasia of the corpus callosum can be classified as agenesis, partial formation, or hypoplasia (9). There were 3 abnormalities of the corpus callosum, 2 with agenesis, and a 3rd with partial agenesis, and all which were below 5% errors. In our study, two fetuses presented agenesis of the corpus callosum, one of which was with colpocephaly (PHLV, posterior horn of lateral ventricle) = 12 mm and one case of partial agenesis of the corpus callosum presented with a PHLV = 11 mm. Their MAD, MTD, PAD, and PTD values fell below the 95% confidence intervals' lower limits for the corresponding maternal GA. The third case had the PAD and PTD values falling below the 95% confidence interval's lower limits for the corresponding maternal GA.