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Neuroradiology. 1995 Jan;37(1):72-6.

Uncommon posterior cranial fossa anomalies: MRI with clinical correlation.

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Department of Radiology, University Hospitals, Leuven.


The clinical and MRI findings in two cases of rhombencephalosynapsis (RS) and two of tectocerebellar dysraphia (TCD) with an associated occipital encephalocele were studied to elucidate the clinical picture and embryogenesis of these rare anomalies. To our knowledge, only one case of TCD [1] and four of RS [2, 3] examined by MRI during life have been reported. The clinical picture in the cases of RS was rather constant and there were similarities with TCD. Consideration of the embryogenesis of the neural tube suggests a temporal proximity of the abnormalities, with TCD arising at a slightly earlier time.

[Indexed for MEDLINE]

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