Evidence map›Paper›PMID 35394668›Full record

ReviewJournal of neuroimaging : official journal of the American Society of Neuroimaging2022

Hirayama disease: Nosological classification and neuroimaging clues for diagnosis.

Salvatore Iacono, Vincenzo Di Stefano, Andrea Gagliardo, Roberto Cannella, Valentina Virzì, Sonia Pagano, Antonino Lupica, Marcello Romano, Filippo Brighina

Open access · hybridAbstract readCase ReportsReview
In one paragraph

Review in Journal of neuroimaging : official journal of the American Society of Neuroimaging, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
4.1field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Hirayama disease: A case report.Radiology case reports · 2026
    Article
  3. Article
  4. Spinal cord ischemia: The "snake bite sign".World journal of radiology · 2025
    Article
  5. Characteristics of Hirayama Disease in Young South Korean Soldiers.Journal of clinical neurology (Seoul, Korea) · 2024
    Article
  6. Loss of cervical sagittal alignment worsens the cervical spinal lesions in patients with Hirayama disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Hirayama disease: Nosological classification and neuroimaging clues for diagnosis.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2022
    Review
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Salvatore IaconoSection of Neurology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.ORCID 0000-0003-0035-5859
Vincenzo Di StefanoSection of Neurology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.
Andrea GagliardoSection of Neurology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.
Roberto CannellaSection of Radiology, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University Hospital "Paolo Giaccone", University of Palermo, Palermo, Italy.
Valentina VirzìU.F. Radiodiagnostica Casa di cura Regina Pacis, San Cataldo, Italy.
Sonia PaganoSection of Neurology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.
Antonino LupicaSection of Neurology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.
Marcello RomanoNeurology Unit, Azienda Ospedaliera Ospedali Riuniti Villa Sofia Cervello, Palermo, Italy.
Filippo BrighinaSection of Neurology, Department of Biomedicine, Neuroscience, and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.
University of Palermo · ITCasa di Cura Columbus · ITOspedale Vincenzo Cervello · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hirayama disease (HD) is a rare, benign, and nonprogressive motor neuron disease (MND) affecting the upper limbs. It usually presents with weakness and amyotrophy in a single upper extremity with an insidious onset between adolescence and the third decade of life. Since its description in 1959, HD has been known under several names and eponyms in Europe and in Asian countries probably due to its heterogeneous clinical features. Thus, the unclear nosological classification makes challenging the differential diagnosis between HD and other neuromuscular conditions, such as MNDs. However, apart from the nosological difficulties and the lack of evidence-based guideline for diagnosis, the neuroimaging is the mainstay for the diagnosis of HD. Indeed, the specific findings on cervical flexion MRI usually lead to a prompt diagnosis. Here, we reviewed the nosological classifications of HD and its neuroimaging features. Also, we report a case of a 18-year-old boy who presented to our Clinic complaining of muscle weakness of the left distal upper limb without other neurological signs. The cervical MRI, in the neutral position, revealed a high T2 signal intensity in the C5-C7 cervical myelomeres as well as the loss of cervical lordosis, whereas, during neck flexion, it showed the anterior displacement of the posterior dura ad the post-gadolinium T1-weighted imaging enhancement of the posterior epidural plexus. These findings are typical for HD allowing the diagnosis as well as the differential diagnosis from other neuromuscular diseases.

Indexed as

Spinal Muscular Atrophies of ChildhoodAdolescentHumansMagnetic Resonance ImagingMaleNeckNeuroimagingcervical MRIflexion MRIHirayamaJASSMAMMAmotor neuron disease

Identifiers

PMID35394668
PMCPMC9544790
OpenAlexW4225610988

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.