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‘Hummingbird’ Sign in a Patient with Guam Parkinsonism-Dementia Complex [PDF]
Journal of Movement Disorders, 2017 We present a case of a 71-year-old male Chamorro patient from Guam who presented with progressive supranuclear palsy (PSP)-Richardson’s syndrome. Considering his strong family history of parkinsonism and a PSP phenotype, he was clinically diagnosed with ...
Tianrong Yeo, Louis CS Tan
doaj +6 more sources
Hummingbird sign in progressive supranuclear palsy [PDF]
Annals of Saudi Medicine, 2012 Ann Saudi Med 2012 November-December www.annsaudimed.net 663 Progressive supranuclear palsy (SteeleRichardson-Olszewski syndrome) is a neurological disorder characterized by degeneration of the midbrain, basal ganglia and other structures like the ...
Rajesh Verma, Mani Gupta
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A newly described imaging finding for idiopathic normal pressure hydrocephalus: Can hummingbird sign contribute to the diagnosis? [PDF]
Turk J Med Sci, 2021 In this study, we aimed to evaluate whether morphological changes in the mesencephalon, which were previously described as a diagnostic tool for progressive supranuclear palsy, could be associated also with idiopathic normal pressure hydrocephalConsecutive 52 patients with a possible diagnosis of idiopathic normal pressure hydrocephalus (32 female ...
Atalay B +2 more
europepmc +6 more sources
Can the hummingbird sign contribute to the diagnosis of idiopathic normal pressure hydrocephalus? [PDF]
Turk J Med Sci, 2022 We read with great interest the article by Atalay et al. in which they illustrate the frequent presence of hummingbird signs in their patient group with idiopathic normal pressure hydrocephalus (iNPH) [1]. The results are substantially interesting; however, we believe that some points may be further deliberated for a better understanding of this ...
Önder H, Çomoğlu S.
europepmc +6 more sources
"Hummingbird Sign" in Fragile X-Associated Tremor/Ataxia Syndrome. [PDF]
Mov Disord Clin Pract, 2015 A 64-year-old man progressively developed ataxic gait, 3-Hz high-amplitude, intentional/postural tremor, and dysarthric speech. FMR1 gene analysis revealed a premutation (89 CGG repeats) and a brain MRI showed mesencephalon atrophy with normal pons morphometry (the so-called “hummingbird” or “penguin” sign) along with middle cerebral peduncle ...
Immovilli P +6 more
europepmc +6 more sources
The Hummingbird sign: a diagnostic clue for Steele-Richardson-Olszweski syndrome. [PDF]
BMJ Case Rep, 2012 Progressive supranuclear palsy (PSP), previously known as Steele-Richardson-Olszweski syndrome, is an atypical parkinsonian syndrome with a prevalence of ∼5/100 000. It is an important differential diagnosis of more common idiopathic Parkinson's disease (iPD), where clinical differentiation is not straightforward and characteristic neuroimaging often ...
Sonthalia N, Ray S.
europepmc +6 more sources
'Hummingbird' sign in progressive supranuclear palsy.
Ann Indian Acad Neurol, 2009 gave an appearance resembling the head and body, respectively, of a hummingbird [Figure 1]. This is known as the ‘hummingbird’ sign.[1,2] Demonstration of the hummingbird sign on MRI is thought to be useful for establishing the diagnosis of PSP; it is ...
Shukla R, Sinha M, Kumar R, Singh D.
europepmc +5 more sources
Hummingbird sign in progressive supranuclear palsy disease
Journal of Research in Medical Sciences, 2012 Progressive supranuclear palsy (PSP) is characterized by slowness, rigidity, bradykinesia, repeated falls, downgaze limitation and dementia. Midbrain atrophy on magnetic resonance imaging is highly suggestive of PSP and is described as "hummingbird sign".
Sanjay Pandey
doaj +5 more sources
Austin Journal of Radiology, 2021 Progressive supranuclear palsy also known as Steele-Richardson syndrome (PSP-RS) is a neurodegenerative disease that manifests as axial rigidity, unstable posture, and supranuclear gaze palsy. Thus, there is a marked atrophy of the middle of the brain involving midbrain.
B Wilson +7 more
semanticscholar +3 more sources
Midbrain area and the hummingbird sign from brain MRI in progressive supranuclear palsy and idiopathic normal pressure hydrocephalus [PDF]
Journal of Neuroimaging, 2021 ABSTRACTBackground and PurposeThe main radiological finding in progressive supranuclear palsy (PSP) is reduced midbrain volume. Both qualitative (e.g., hummingbird sign) and quantitative (e.g., area measurements) markers have been noted. Recent studies have shown a similar reduction also in idiopathic normal pressure hydrocephalus (iNPH).
Johan Virhammar +4 more
semanticscholar +6 more sources