Evidence map›Paper›PMID 42571481›Full record

ArticleRadiology case reports2026

Lumbar microspur-related ventral cerebrospinal fluid leak localized by digital subtraction myelography: A case report.

Daito Nakamura, Jun Tsugawa, Ritsurou Inoue, Yuko Kimura, Sho Takeshita, Hironori Fukumoto, Hayatsura Hanada, Kimiya Sakamoto, Kouhei Nii, Toshio Higashi

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

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

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Daito NakamuraDepartment of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Jun TsugawaDepartment of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Ritsurou InoueDepartment of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Yuko KimuraDepartment of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Sho TakeshitaDepartment of Neurology, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Hironori FukumotoDepartment of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Hayatsura HanadaDepartment of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Kimiya SakamotoDepartment of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Kouhei NiiDepartment of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
Toshio HigashiDepartment of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spontaneous intracranial hypotension (SIH) is commonly caused by spinal cerebrospinal fluid (CSF) leakage. Microspur-related ventral dural tears are an increasingly recognized etiology of SIH; however, lumbar lesions remain extremely rare. A 41-year-old woman presented with severe orthostatic headache and nausea. Whole-spine magnetic resonance imaging demonstrated spinal longitudinal extradural CSF collection (SLEC), suggesting spinal CSF leakage. Computed tomography myelography identified a small calcified lesion at the L1/2 level consistent with a discogenic microspur compressing the ventral dural sac. Digital subtraction myelography (DSM) demonstrated active contrast extravasation into the epidural space at the corresponding level, consistent with a ventral dural tear caused by the microspur. Targeted epidural blood patch treatment at the L1/2 level resulted in rapid symptom resolution without recurrence during 18 months of follow-up. This case demonstrates that lumbar microspurs can cause SLEC-positive SIH through ventral dural injury. DSM was useful for dynamic localization of the active CSF leak and facilitated targeted treatment. To the best of our knowledge, this is the first reported case of lumbar microspur-induced SIH confirmed by DSM.

Indexed as

Cerebrospinal fluid leakDigital subtraction myelographyEpidural blood patchMicrospurSpontaneous intracranial hypotension

Identifiers

PMID42571481
PMCPMC13452290

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.