Table 1 Summary of the important clinical findings and investigations of all patients

From: Can vitamin B12 deficiency manifest with acute posterolateral or posterior cord syndrome?

Characteristics

Patient 1

Patient 2

Patient 3

Patient 4

Patient 5

Age (years)

31

18

16

33

15

Sex

Male

Female

Female

Male

Female

Total duration of illness (days)

10

15

7

10

6

Vegetarian

Yes

Yes

Yes

Yes

Yes

UL or LL complaints

UL

LL

LL

UL

LL

Ankle reflex

Normal

Absent

Absent

Normal

Absent

Plantar reflex

Flexor

Extensor

Extensor

Flexor

Flexor

Romberg test

Negative

Positive

Positive

Negative

Positive

Sensory gait ataxia

No

Yes

Yes

No

Yes

Pseudoathetosis of hands

Yes

No

No

Yes

No

Haemoglobin (12–15 g dl−1)

9.0

8.5

12.5

14.5

13.2

MCV (80–100 fL)

106

112

96

108

116

Macrocytes in peripheral smear

Yes

Yes

Yes

No

Yes

Vitamin B12 level (243–894 pg ml−1)

97

86

102

92

88

Homocysteine (5–15 μmol l−1)

57

62

48

66

71

MRI spinal cord

Cervical posterior cord hyperintensity

Thoracic posterior cord hyperintensity

Thoracic posterior cord hyperintensity

Cervical posterior cord hyperintensity

Normal

Clinical syndrome

Acute posterior cord syndrome

Acute posterolateral cord syndrome

Acute posterolateral cord syndrome

Acute posterior cord syndrome

Acute posterior cord syndrome

Complete improvement

3 months

2 months

1 month

2 months

3 months

  1. Abbreviations: LL, lower limb; MCV, mean corpuscular volume; MRI, magnetic resonance imaging; UL, upper limb.