Table 2:

MR imaging findings in all patients and DTI findings in patient 3

	Patient 1	Patient 2	Patient 3	Patient 4	Patient 5	Patient 6	DTI Findings in Patient 3
Cerebellar hemispheres	Small	Small	Normal appearance	Small	Hypoplastic and dysplastic	Small
Vermis	Moderately hypoplastic	Hypoplastic and dysplastic	Normal appearance	Hypoplastic and dysplastic	Hypoplastic and dysplastic	Hypoplastic
Fourth ventricle	Slightly enlarged	Slightly enlarged	Normal, partially occupied by the cap	Slightly enlarged	Normal, partially occupied by the cap	Slightly enlarged
SCP	Elongated	Elongated	Elongated	Elongated	Elongated	Elongated	Elongated, no decussation
MCP	Small	Small	Small	Small	Small	Small	Small, joined by the EDTB
ICP	Un	Un	Un	Small	Un	Un	Un
Pons	Hypoplastic, flattening of the ventral aspect, dorsal cap, “horizontal cleft” deformity	Hypoplastic, flattening of the ventral aspect, dorsal cap, “horizontal cleft” deformity	Hypoplastic, flattening of the ventral aspect, dorsal cap, “horizontal cleft” deformity	Hypoplastic, flattening of the ventral aspect, dorsal cap, “horizontal cleft” deformity	Hypoplastic, flattening of the ventral aspect, dorsal cap, “horizontal cleft” deformity	Hypoplastic, flattening of the ventral aspect, dorsal cap, “horizontal cleft” deformity	Ectopic dorsal transverse bundle or tegmental cap, descending long tracts located ventrally to the EDTB
Pontine-mesencephalon junction (isthmus)	Thin	Thick	Thick	Thick	Thick	Thick
Cerebrum	Normal appearance	Normal appearance	Normal appearance	Normal appearance	Normal appearance	Normal appearance
Corpus callosum	Dysmorphic	Hypoplastic	Thin	Hypoplastic	Hypoplastic	Dysmorphic

Note:—EDTB indicates ectopic dorsal transverse bundle; Un, unidentifiable; DTI, diffusion tensor imaging; SCP, superior cerebellar peduncles; MCP, middle cerebellar penduncles; ICP, inferior cerebellar peduncles.