Table 5

Similarities and differences between head ptosis and camptocormia

Clinical featuresAdvanced ageHead ptosis often subacute in onset, while camptocormia tends to be insidious
In some extrapyramidal disorders both can occur in the same patient23
Underlying disordersSimilar neuromuscular and extrapyramidal causesCamptocormia is more often associated with myopathic rather than neurogenic disorders
Paraspinal muscle pathologyMixed myopathic and neuropathic features
Prognosis/OutcomeImprovement and worsening with levodopa therapy has been reported in parkinsonian patients with head drop as well as camptocormia14,21Camptocormia tends to be progressive with no reports of spontaneous improvement