Table 1

Demographic and clinical data

Patient	Sex	Age (years)	Horner	Additional clinical signs	Lesion location
F, female; L, left; M, male; R, right.
1	M	76	L	Left V nerve deficit, spontaneous nystagmus to the right, left hemiataxia, truncal and gait ataxia	Medulla
2	W	63	R	Dysarthria, emotional right facial paresis, right hemiataxia, truncal and gait ataxia	Pontomedullary
3	M	74	L	Dysarthria, right motor hemiparesis, gait ataxia	Pons
4	M	69	R	Skew deviation (lower right eye), rotatory gaze evoked nystagmus to the left, central trigeminal deficit (S1, S2), right facial palsy, dysphagia, right hemiataxia, gait ataxia	Medulla
5	M	60	L	Dysarthria, dysphagia, spontaneous nystagmus to the right, left hemiataxia, right motor hemiparesis, truncal and gait ataxia, right dissociated sensory deficit	Medulla
6	W	87	R	Dysphagia, left motor hemiparesis, right hemiataxia, gait ataxia, left dissociated sensory deficit	Medulla
7	W	72	R	Diminished right corneal reflex, right facial paresis, left dissociated sensory deficit, gait ataxia	Medulla
8	M	68	L	Dysarthria, right motor hemiparesis, gait ataxia	Pons
9	M	66	L	Left V nerve deficit, gait ataxia	Pontomesencephalic
10	W	61	L	Rotatory spontaneous nystagmus to the left, left V nerve deficit, left palate paresis, dysphagia, right dissociated sensory deficit, truncal and gait ataxia	Medulla
11	M	75	R	Right VI nerve palsy, up-beat nystagmus, gaze nystagmus to the right, right masseter paresis, right facial palsy, dysarthria, right palate paresis	Pontomedullary
12	M	67	L	Skew deviation (lower left eye), gaze nystagmus to the left, left V nerve deficit (V1), left facial palsy, dysarthria, dysphagia, truncal and gait ataxia	Medulla
13	W	68	L	Rotatory spontaneous nystagmus to the right, truncal and gait ataxia	Medulla
14	M	69	L	Skew deviation (lower left eye), left palate paresis, right dissociated sensory deficit, gait ataxia	Medulla
15	M	55	L	Left central trigeminal deficit (S1), dysphagia, dissociated sensory deficit of the right hand, gait ataxia	Medulla
16	W	77	L	Gaze evoked nystagmus to the left, left hemiataxia, right dissociated sensory deficit, gait ataxia	Medulla
17	M	69	L	Rotatory spontaneous nystagmus to the right, left facial palsy, left palate paresis, left hypoglossal paresis, dysarthria, left hemiataxia, right dissociated sensory deficit	Medulla
18	M	64	L	Left facial paresis, gaze nystagmus to the left, right motor hemiparesis, left hemiataxia, truncal and gait ataxia	Pontomedullary
19	M	69	L	Spontaneous nystagmus to the right, gait ataxia	Medulla
20	M	65	L	Gaze evoked nystagmus to the right, left V nerve deficit, left palate paresis, dysarthria, dysphagia, left hemiataxia, gait ataxia	Pontomedullary
21	M	71	L	Rotatory spontaneous nystagmus to the left, left V nerve deficit, left hypoglossal paresis, dysarthria, left hemiataxia, gait ataxia, right dissociated sensory deficit	Pontomedullary
22	M	54	R	Gaze nystagmus to the right, right palate paresis, right V nerve deficit, right facial paresis, dysarthria, truncal and gait ataxia	Medulla
23	M	51	R	Spontaneous nystagmus to the left, dysarthria, right hemiataxia, truncal and gait ataxia	Medulla
24	M	71	R	Horizontal gaze evoked nystagmus, right palate paresis, dysarthria, dysphagia, left motor hemiparesis, left dissociated sensory deficit, truncal and gait ataxia	Pontomedullary
25	W	26	R	Rotatory spontaneous nystagmus to the right, dysarthria, dysphagia, right hypoglossal paresis, right hemiataxia	Medulla
26	M	55	L	Gaze evoked nystagmus to the right, left abduction deficit, left facial palsy, right dissociated sensory deficit, right gait ataxia	Pontomedullary
27	F	65	R	Spontaneous nystagmus to the right, left motor hemiparesis, right hemiataxia, truncal and gait ataxia, left dissociated sensory deficit	Medulla
28	M	56	L	Right facial paresis, right motor hemiparesis, gait ataxia	Pontomedullary
29	M	50	L	Left V nerve deficit, right dissociated sensory deficit, gait ataxia	Medulla
30	M	74	L	Left enoral trigeminal deficit, right dissociated sensory deficit, gait ataxia	Medulla
31	F	63	L	Left hypoglossal paresis, dysarthria, right dissociated sensory deficit, left hemiataxia, gait ataxia	Medulla