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PAUL TENG, MD; CHRISTOS PAPATHEODOROU, MD

Arch Neurol. 1965;12(6):622-624.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

ARNOLD-CHIARI malformation¹⁹ denotes a congenital anomaly consisting of (1) caudal displacement of the inferior cerebellar vermis or tonsils, and (2) "hunch-back" or nodular reduplication of the medulla oblongata accompanied by descent of the lower pons, medulla, and fourth ventricle into the spinal canal. A malformation comprised of only cerebellar displacement without medullary deformity is known as Chiari type 1 or Arnold malformation, and the reverse is called Chiari type 2 or Chiari deformity.^2,5,6

Schwalbe and Gredig¹⁹ claimed that the Arnold-Chiari malformation was invariably associated with a severe degree of spina bifida, and often other anomalies of the spinal column and cranium. During the last three decades, there have been several recorded cases with normal spine, but recently in a critical review, Peach¹⁷ considered none of these as Arnold-Chiari malformation but designated all of them type 1 deformity,^{1,3,9,11,14,16,21} and he reported a well-documented case, a . . . [Full Text PDF of this Article]

Author Affiliations
LONG BEACH, CALIF

Footnotes
Submitted for publication Nov 28, 1964; accepted Jan 20, 1965.

Reprint requests to 2530 Atlantic Ave, Long Beach, Calif 90806 (Dr. Teng).

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