B21. Typical symptoms of peripheral and central lesions
|
Peripheral lesion |
Central lesion | |
|---|---|---|
| Muscle strength | Decreased | Decreased |
| Muscle tone | Decreased (flaccidity) | Increased (spasticity) |
| Muscle trophy | Decreased (atrophy) | Normal (decreased in the chronic phase) |
| Fasciculations | Present | Absent |
| Deep tendon reflexes | Decreased or absent | Brisk or increased |
| Pyramidal signs | Absent | Present |
| Sensory loss | Absent or present in the distribution of one nerve root, plexus or peripheral nerve | Absent or present in the hemi-, para-, or tetra- patterns, or in niveau pattern if spinal cord is affected |