False localising signs Flashcards
1
Q
What are false localising signs?
A
Neurological signs that reflect pathology distant from the expected anatomical locus
2
Q
Which cranial nerve is famous for causing false localising signs?
A
Abducens - CNVI
Occurs in cases of raised ICP
The nerve gets stretched during its long course or is pressed against temporal bone
3
Q
When do false localising signs occur?
A
Raised ICP
Spinal cord lesions
4
Q
Third nerve palsy false localising cause
A
Uncal herniation
5
Q
Which cranial nerve palsies are associated with increased ICP?
A
Classically abducens (6th)
Also trigeminal (5th) and facial (7th)
