Evidence map›Paper›PMID 41634613›Full record

ArticleBMC neurology2026

A notable case of primary progressive freezing of gait associated with parietal cortical atrophy.

Su Hyeon Ha, Dallah Yoo, Il Ki Hong, Hyug-Gi Kim, Kyung Mi Lee, Tae-Beom Ahn

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Article in BMC neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Su Hyeon Ha *Department of Medicine, Kyung Hee University Graduate School, Seoul, Republic of Korea.
Dallah Yoo *Department of Neurology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.
Il Ki HongDepartment of Nuclear Medicine, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
Hyug-Gi KimDepartment of Radiology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
Kyung Mi LeeDepartment of Radiology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
Tae-Beom AhnDepartment of Neurology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea. taebeom.ahn@khu.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFreezing of gait (FOG) is a symptom that occurs in Parkinson’s disease (PD) and various other gait disorders. Primary progressive freezing of gait (PPFG) disorder is a rare clinical syndrome in which FOG persists for at least three years without any other clinical symptoms. We report a patient with long-lasting isolated FOG accompanied by marked parietal cortical atrophy to explore its potential pathophysiological significance. CASE PRESENTATION: A 55-year-old man presented with a one-year history of FOG and recurrent unprovoked falls. Neurological examinations revealed FOG without signs of parkinsonism. While dopamine transporter (DAT) imaging showed normal uptake, brain magnetic resonance imaging (MRI) demonstrated marked bilateral parietal lobe atrophy without brainstem atrophy. Five years later, FOG persisted with mild parkinsonism, consistent with the diagnosis of PPFG. Follow-up MRI and DAT imaging revealed no interval changes. Single-case voxel-based morphometry demonstrated reduced volume in the right superior parietal lobe and left superior occipital gyrus, and neuropsychological testing indicated preserved cognition across all domains.

conclusionThis case illustrates a rare presentation of long-standing isolated FOG associated with localized parietal cortical atrophy. These findings suggest that involvement of the parietal cortex may contribute to the pathophysiology of FOG.

Indexed as

Gait Disorders, NeurologicParietal LobeAtrophyHumansMagnetic Resonance ImagingMaleMiddle AgedFreezing of gaitParietal cortexPathophysiologyPrimary progressive freezing of gait

Identifiers

PMID41634613
PMCPMC12958690

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