Antecollis

Antecollis

Antecollis (anterocollis) is forward flexion of the neck. It may be a feature of multiple system atrophy (cf. retrocollis in progressive supranuclear palsy), a sustained dystonic posture in advanced Parkinson’s disease, and, unusually, in spasmodic torticollis.
Forward flexion of the head onto the chest is a feature in the "dropped head syndrome."

Cross References

Dropped head syndrome; Retrocollis; Torticollis