Similarities and differences between head ptosis and camptocormia
| Similarities | Differences | |
|---|---|---|
| Clinical features | Advanced age | Head ptosis often subacute in onset, while camptocormia tends to be insidious |
| In some extrapyramidal disorders both can occur in the same patient23 | ||
| Underlying disorders | Similar neuromuscular and extrapyramidal causes | Camptocormia is more often associated with myopathic rather than neurogenic disorders |
| Paraspinal muscle pathology | Mixed myopathic and neuropathic features | |
| Prognosis/Outcome | Improvement and worsening with levodopa therapy has been reported in parkinsonian patients with head drop as well as camptocormia14,21 | Camptocormia tends to be progressive with no reports of spontaneous improvement |