Evidence map›Paper›PMID 41694700›Full record

ArticleRadiology case reports2026

Lentiform fork sign mimicking uremic encephalopathy in an atypical case of autoimmune limbic encephalitis.

Chaimaa Jabbari, Ihssane Laasri, Aya Laridi, Meryem Fikri, Najwa Ech-Cherif Kettani, Mohamed Jiddane, Firdaous Touarsa

Abstract readCase Reports
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. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

7 authors.

Chaimaa JabbariNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.
Ihssane LaasriNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.
Aya LaridiNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.
Meryem FikriNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.
Najwa Ech-Cherif KettaniNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.
Mohamed JiddaneNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.
Firdaous TouarsaNeuroradiology Department, Ibn Sina University Hospital, Rabat, Morocco.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The lentiform fork sign (LFS) on MRI is often associated with uremic encephalopathy but is not pathognomonic. We present a case of autoimmune limbic encephalitis initially suspected as uremic encephalopathy despite normal renal function. A 58-year-old woman presented with seizures and altered mental status. MRI showed bilateral basal ganglia hyperintensities with the classic LFS. Normal renal parameters prompted cerebrospinal fluid analysis, which revealed anti-NMDA receptor antibodies, confirming autoimmune encephalitis. The patient improved markedly after immunotherapy. This case emphasizes the need to consider autoimmune causes of LFS and the importance of early diagnosis and treatment in preventing adverse outcomes.

Indexed as

Autoimmune encephalitisLentiform fork signLimbic encephalitisMRIUremic encephalopathy mimic

Identifiers

PMID41694700
PMCPMC12906208

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.