Prenatal diagnosis of isolated posterior fossa anomalies: attempt at a simplified approach
Adamsbaum, C.; Merzoug, V.; André, C.; Fallet-Bianco, C.; Lewin, F.; Kalifa, G.; Rolland, Y.; Moutard, M.L.
Journal de Radiologie 83(3): 321-328
2002
ISSN/ISBN: 0221-0363 PMID: 11979225 Document Number: 550485
The authors suggest, after some embryological, anatomical and nosological reviews, a simplified approach mainly based on the appearance of the pons, cerebellar hemispheres and vermis, independently from an associated cystic dilatation of the posterior fossa. Pontocerebellar hypoplasias and partial or total vermian agenesis are detailed because they can be diagnosed with a prenatal MRI. This classification based on our experience and on the literature data should be of value to evaluate the neurological prognosis.