[1] W.
E.
Chamberlain,
“Basilar Impression (Platybasia),” Yale J.
Biol.
Med.,
vol.
11,
no.
5,
pp.
487–496,
1939.
[2] M.
McGREGER,
“The significance of certain measurements of the skull in the diagnosis,” Br.
J.
Radiol.,
vol.
21,
no.
244,
pp.
171–181,
1948.
[3] Y.
F.
Chen and H.
M.
Liu,
“Imaging of Craniovertebral Junction,” Neuroimaging Clin.
N.
Am.,
vol.
19,
no.
3,
pp.
483–510,
2009.
[4] R.
A.
Koenigsberg et al.,
“Evaluation of platybasia with MR imaging,” Am.
J.
Neuroradiol.,
vol.
26,
no.
1,
pp.
89–92,
2005.
[5] W.
R.
Smoker,
“Craniovertebral junction: normal anatomy,
craniometry,
and congenital anomalies.,” RadioGraphics,
vol.
14,
no.
2,
pp.
255–277,
1994.
[6] W.
R.
K.
Smoker and G.
Khanna,
“Imaging the craniocervical junction,” Child’s Nerv.
Syst.,
vol.
24,
no.
10,
pp.
1123–1145,
2008.
[7] R.
Riascos,
E.
Bonfante,
C.
Cotes,
M.
Guirguis,
R.
Hakimelahi,
and C.
West,
“Imaging of Atlanto-Occipital and Atlantoaxial Traumatic Injuries: What the Radiologist Needs to Know,” RadioGraphics,
2015.
[8] N.
K.
Pinter,
J.
McVige,
and L.
Mechtler,
“Basilar Invagination,
Basilar Impression,
and Platybasia: Clinical and Imaging Aspects,” Curr.
Pain Headache Rep.,
vol.
20,
no.
8,
pp.
1–8,
2016.
[9] A.
H.
Menezes,
“Craniocervical developmental anatomy and its implications,” Child’s Nerv.
Syst.,
vol.
24,
no.
10,
pp.
1109–1122,
2008.
[10] R.
S.
Tubbs,
P.
R.
Lingo,
M.
M.
Mortazavi,
and A.
A.
Cohen-Gadol,
“Hypoplastic occipital condyle and third occipital condyle: Review of their dysembryology,” Clin.
Anat.,
vol.
26,
no.
8,
pp.
928–932,
2013.
[11] K.
Natsis,
C.
Lyrtzis,
T.
Totlis,
N.
Anastasopoulos,
and M.
Piagkou,
“A morphometric study of the atlas occipitalization and coexisted congenital anomalies of the vertebrae and posterior cranial fossa with neurological importance,” Surg.
Radiol.
Anat.,
vol.
39,
no.
1,
pp.
39–49,
2017.
[12] P.
Salunke,
S.
Behari,
M.
V.
Kirankumar,
M.
S.
Sharma,
A.
K.
Jaiswal,
and V.
K.
Jain,
“Pediatric congenital atlantoaxial dislocation: differences between the irreducible and reducible varieties,” J.
Neurosurg.
Pediatr.,
vol.
104,
no.
2,
pp.
115–122,
2006.
[13] B.
F.,
J.
M.,
R.
M.,
J.
G.,
and B.
J.-F.,
“Split atlas in a patient with odontoid fracture,” Neuroradiology,
vol.
46,
no.
6,
pp.
450–452,
2004.
[14] N.
Jain,
R.
Verma,
U.
C.
Garga,
B.
P.
Baruah,
S.
K.
Jain,
and S.
N.
Bhaskar,
“CT and MR imaging of odontoid abnormalities: A pictorial review.,” Indian J.
Radiol.
Imaging,
vol.
26,
no.
1,
pp.
108–19,
2016.
[15] J.
Johal,
M.
Loukas,
C.
Fisahn,
R.
J.
Oskouian,
and R.
S.
Tubbs,
“Bergmann’s ossicle (ossiculum terminale persistens): a brief review and differentiation from other findings of the odontoid process,” Child’s Nerv.
Syst.,
vol.
32,
no.
9,
pp.
1603–1606,
2016.
[16] a T.
Bergenheim and a Forssell,
“Vertical odontoid fracture.
Case report.,” J.
Neurosurg.,
vol.
74,
no.
4,
pp.
665–667,
1991.
[17] P.
Nerves,
“Evaluation and treatment of congenital and developmental anomalies of the cervical spine,” vol.
1,
no.
March,
pp.
188–197,
2004.
[18] J.
P.
Sardi,
J.
Iwanaga,
R.
J.
Oskouian,
and R.
S.
Tubbs,
“First Gross Anatomic Findings of an Os Odontoideum,” World Neurosurg.,
vol.
101,
p.
813.e1-813.e3,
2017.
[19] M.
Castillo and S.
K.
Mukherji,
“Vertical fractures of the dens,” Am.
J.
Neuroradiol.,
vol.
17,
no.
9,
pp.
1627–1630,
1996.
[20] J.
Han,
D.
Cao,
G.
Ma,
T.
Wang,
Y.
Ji,
and Z.
Kang,
“Lateral medullary infarction with similar features of Brown Sequard syndrome caused by vertebrobasilar dysplasia and Klippel-Feil syndrome: A case report,” Medicine (Baltimore).,
vol.
96,
no.
45,
pp.
22–24,
2017.