Alien limb phenomenon following posterior cerebral artery stroke: a distinct clinical entity

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Alien limb syndrome following stroke within the territory of the posterior cerebral artery is exceedingly rare. A right-handed female experienced left homonymous hemianopia, visuospatial neglect, and proprioceptive loss of her left hemi-body. She experienced unintended, involuntary movements of her left arm and hand, which interfered with and disturbed motor actions of daily life performed with her right upper limb. There was no denial of ownership, but she interpreted movements of her left upper limb to be annoying, out of her will and unwanted. The alien limb phenomenon improved in parallel with improvement of proprioceptive loss over a 12-week of in-patient rehabilitation. A recently proposed theoretical concept of the alien limb phenomenon after posterior artery stroke is discussed.

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Correspondence to Dennis A. Nowak.

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On behalf of all the authors, the corresponding author states that there is no conflict of interest.

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All procedures performed were in accordance with the 1964 Helsinki declaration and its later amendments. No ethics approval was obtained for this case report.

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Nowak, D.A., Engel, A., Leutbecher, M. et al. Alien limb phenomenon following posterior cerebral artery stroke: a distinct clinical entity. J Neurol 267, 95–99 (2020).

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  • Alien hand
  • Posterior cerebral artery
  • Stroke
  • Theory