“Acquired” Chiari I malformation
1994; American Association of Neurological Surgeons; Volume: 80; Issue: 6 Linguagem: Inglês
10.3171/jns.1994.80.6.1099
ISSN1933-0693
AutoresPaul P. Huang, Shlomo Constantini,
Tópico(s)Fetal and Pediatric Neurological Disorders
Resumo✓ Tonsillar descent of the cerebellum in Chiari I malformations is often considered a congenital defect. A patient is presented in whom magnetic resonance (MR) imaging revealed normally positioned cerebellar tonsils; however, 1 year later MR imaging was repeated for evaluation of gait abnormalities and showed descent of the cerebellar tonsils. This case illustrates worsening symptoms with progressive descent of the cerebellar tonsils and suggests that Chiari I malformations can evolve postnatally.
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