Table 2 Abnormality of superficial abdominal reflex (20 of 93 cases; 22%)

A: Bilateral absence

6

6 myopathic

B: Unilateral absence

6

4 syringomyelia

1 thoracogenic (after abdominal surgery)

1 myelomeningocele (after abdominal surgery)

C: Bilateral hyporeflexia

5

2 syringomyelia

1 Duchenne muscular dystrophy

2 idiopathic

D: Unilateral hyporeflexia

3

2 syringomyelia

1 thoracogenic (after abdominal surgery)