Demaerel, P.
Kendall, BE.
Wilms, G.
Halpin, SFS.
Casaer, P.
Baert, AL.
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.
- Truwit CL, Barkovich AJ, Shanahan R, Maroldo TV (1991) MR imaging of rbombencephalosynapsis: report of three cases and review of the literature. AJNR 12:957?965
- Savolaine ER, Fadell RJ, Patel YP (1991) Isolated rhombencephalosynapsis diagnosed by magnetic resonance imaging. Clin Imag 15:125?129
- Obersteiner H (1914) Ein Kleinhirn ohne Wurm. Arb Neurol Inst (Wien) 21:124?136
- Gross H, Hoff H (1959) Sur les dysraphies craniocéphaliques. In: Heyer G, Feld M, Gruner J (eds) Malformations congénitales du cerveau. Masson, Paris, pp 287?296
- Friede RL (1989) Developmental neuropathy, 2nd edn. Springer, Berlin Heidelberg New York, pp 347?371
- Michaud J, Mizzahi EM, Urich H (1982) Agenesis of the vermis with fusion of the cerebellar hemispheres, septo-optic dysplasia and associated anomalies: report of a case. Acta Neuropahtol (Berl) 56:161?166
- Padget DH, Lindenberg R (1972) Inverse cerebellum morphogenetically related to Dandy-Walker and Arnold-Chiari syndromes: bizarre malformed brain with occipital encephalocele. Johns Hopkins Med 131:228?246
- Smith MT, Huntington HW (1977) Inverse cerebellum and occipital encephalocele: a dorsal fusion defect uniting the Arnold-Chiari and Dandy-Walker spectrum. Neurology 27:246?251
- Inoue Y, Hakuba A, Fujitani K, Fukuda T, Nemoto Y, Umekawa T, Kobayashi Y, Kitano H, Ondyama Y (1983) Occult cranium bifidum. Neuroradiology 25: 217?233
- Leong ASY, Shaw C (1979) The pathology of occipital encephalocele and a discussion of the pathogenesis. Pathology 11:223?234
- Klein J, Palp KV, Bakr KA (1975) Rudimentary occipital meningoceles. A report of 5 cases. Acta Neurochir (Wien) 31:307?308
- Altman NR, Naidich TP, Braffman BH (1992) Posterior fossa malformations. AJNR 13:691?724
- Lemire RJ, Loeser JD, Lecch RW, Ellsworth CA (1975) Normal and abnormal development of the human nervous system. Harper & Row, Hagerstown, pp 144?163
Bibliographic reference |
Demaerel, P. ; Kendall, BE. ; Wilms, G. ; Halpin, SFS. ; Casaer, P. ; et. al. Uncommon Posterior Cranial Fossa Anomalies - Mri With Clinical Correlation. In: Neuroradiology : a journal devoted to neuroimaging and interventional neuroradiology, Vol. 37, no. 1, p. 72-76 (1995) |
Permanent URL |
http://hdl.handle.net/2078.1/48343 |