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  • Title: Three sisters with Chiari I malformation with and without associated syringomyelia.
    Author: Weisfeld-Adams JD, Carter MR, Likeman MJ, Rankin J.
    Journal: Pediatr Neurosurg; 2007; 43(6):533-8. PubMed ID: 17992048.
    Abstract:
    Two daughters of non-consanguineous Ashkenazi Jewish parentage presented with occipital headaches in the second decade of life. Each had a symptomatic Chiari I malformation (CMI) and a large cervicothoracic syrinx. A third sister was diagnosed as having CMI without syrinx after MR screening of first-degree relatives. A fourth (the eldest) sister was asymptomatic and did not have CMI or syrinx. The girls' mother had platybasia on screening MR and a history of cough headaches. All four sisters also had demonstrable platybasic features on MR. The girls' father was asymptomatic and radiologically normal. This family represents the first reported case of three siblings in one family with confirmed CMI with or without syrinx. We discuss the possible genetic and mechanical mechanisms for the development of these abnormalities in this family.
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