An 18F-FDG PET study of cervical muscle in parkinsonian anterocollis

Gonzalo J. Revuelta, Jaime Montilla, Michael G Benatar, Alan Freeman, Thomas Wichmann, Hyder A. Jinnah, Mahlon R. Delong, Stewart A. Factor

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The underlying etiology of parkinsonian anterocollis has been the subject of recent debate. The purpose of this study is to test the hypothesis that anterocollis in parkinsonian syndromes is associated with dystonia of the deep cervical flexors (longus colli and capitis). Eight patients with anterocollis, six in the setting of parkinsonism and two primary cervical dystonia control subjects with anterocollis underwent prospective structured clinical evaluations (interview, examination and rating scales), systematic electromyography of the cervical extensor musculature and 18F-FDG PET/CT studies of cervical muscles to examine evidence of hypermetabolism or overactivity of deep cervical flexors. Subjects with parkinsonian anterocollis were found to have hypermetabolism of the extensor and sub-occipital muscles but not in the cervical flexors (superficial or deep). EMG abnormalities were observed in all evaluated patients, but only one patient was definitely myopathic. Meanwhile, both dystonia controls exhibited hypermetabolism of cervical flexors (including the longus colli). In conclusion, we were able to demonstrate hypermetabolism of superficial and deep cervical flexors with muscle 18F-FDG PET/CT in dystonic anterocollis patients, but not in parkinsonian anterocollis patients. The hypermetabolic changes seen in parkinsonian anterocollis patients in posterior muscles may be compensatory. Alternative explanations for anterocollis include myopathy of the cervical extensors, or unbalanced rigidity of the cervical flexors, but this remains to be proven.

Original languageEnglish
Pages (from-to)174-177
Number of pages4
JournalJournal of the Neurological Sciences
Volume340
Issue number1-2
DOIs
StatePublished - May 15 2014

Fingerprint

Fluorodeoxyglucose F18
Muscles
Parkinsonian Disorders
Torticollis
Dystonia
Electromyography
Muscular Diseases
Interviews

Keywords

  • Anterocollis
  • Dystonia
  • EMG
  • FDG-PET
  • Parkinson's disease

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology

Cite this

Revuelta, G. J., Montilla, J., Benatar, M. G., Freeman, A., Wichmann, T., Jinnah, H. A., ... Factor, S. A. (2014). An 18F-FDG PET study of cervical muscle in parkinsonian anterocollis. Journal of the Neurological Sciences, 340(1-2), 174-177. https://doi.org/10.1016/j.jns.2014.03.023

An 18F-FDG PET study of cervical muscle in parkinsonian anterocollis. / Revuelta, Gonzalo J.; Montilla, Jaime; Benatar, Michael G; Freeman, Alan; Wichmann, Thomas; Jinnah, Hyder A.; Delong, Mahlon R.; Factor, Stewart A.

In: Journal of the Neurological Sciences, Vol. 340, No. 1-2, 15.05.2014, p. 174-177.

Research output: Contribution to journalArticle

Revuelta, GJ, Montilla, J, Benatar, MG, Freeman, A, Wichmann, T, Jinnah, HA, Delong, MR & Factor, SA 2014, 'An 18F-FDG PET study of cervical muscle in parkinsonian anterocollis', Journal of the Neurological Sciences, vol. 340, no. 1-2, pp. 174-177. https://doi.org/10.1016/j.jns.2014.03.023
Revuelta, Gonzalo J. ; Montilla, Jaime ; Benatar, Michael G ; Freeman, Alan ; Wichmann, Thomas ; Jinnah, Hyder A. ; Delong, Mahlon R. ; Factor, Stewart A. / An 18F-FDG PET study of cervical muscle in parkinsonian anterocollis. In: Journal of the Neurological Sciences. 2014 ; Vol. 340, No. 1-2. pp. 174-177.
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