RT Journal Article
SR Electronic
T1 Partial Aplasia of the Posterior Arch of the Atlas with an Isolated Posterior Arch Remnant: Findings in Three Cases
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1167
OP 1171
VO 21
IS 6
A1 Sharma, Aseem
A1 Gaikwad, Shailesh B.
A1 Deol, Parminder S.
A1 Mishra, Nalin K.
A1 Kale, Shashank S.
YR 2000
UL http://www.ajnr.org/content/21/6/1167.abstract
AB Summary: We report the imaging findings in three symptomatic cases of partial aplasia of the posterior arch of the atlas with an isolated posterior remnant of the arch. These cases are instructive in illustrating the mechanism of cord impingement produced by the posterior arch remnant during extension of the cervical spine. Additionally, focal increased T2 signal was observed within the cord at the level of the anomaly in two of the patients.