Partial rhombencephalosynapsis in the presence of Chiari II malformation has been proposed as a “new abnormality of the hindbrain and spine“. We describe a case of Chiari II malformation with imaging features mimicking partial rhombencephalosynapsis. Our case demonstrates how the imaging findings of Chiari II malformation can be confused with the above entity and highlights the differentiating features to help radiologists make an accurate diagnosis.
SenerRNDzelziteS. Rhombencephalosynapsis and a Chiari II malformation. J Comput Assist Tomogr.2003: 27: 257–259.
4.
WanSMKhongPLIpP. Partial rhombencephalosynapsis and Chiari 2 malformation. Hong Kong Med J.2005: 11: 299–302.
5.
McLoneDGKnepperPA. The cause of Chiari II malformation: A unified theory. Pediatr Neurosci.1989: 15: 1–12.
6.
DemaerelPMorelCLagaeL. Partial rhombencephalosynapsis. Am J Neuroradiol.2004: 25: 29–31.
7.
SarnatHB. Molecular genetics classification of central nervous system malformations. J Child Neurol.2000: 15: 675–687.
8.
ObersteinerH. A cerebellum without vermis [in German]. NeurolInst Wien Univ.1914: 21: 124–136.
9.
UtsunomiyaHTakanoKOgasawaraT. Rhombencephalosynapsis: Cerebellar embryogenesis. Am J Neuroradiol.1998: 19: 547–549.
10.
SidmanRLRakicP. Development of the human central nervous system. In: HaymakerWAdamsRD, eds. Histology and histopathology of the nervous system. Springfield, Ill.: Thomas; 1982. p. 3–145.
11.
GunturRamkumar PKanodiaAKAnanthakrishnanG. Chiari II malformation mimicking partial rhombencephalosynapsis? A case report. Cerebellum.2010: 9: 111–114.
12.
BarkovichAJ. Pediatric neuroimaging. Philadelphia, PA: Lippincott, Williams & Wilkins; 2005. p. 291–440.
