Evidence map›Paper›PMID 41085962›Full record

ArticleJournal of general internal medicine2026

Atypical Presentations at Risk for Diagnostic Errors in Internal Medicine: A Scoping Review.

Yukinori Harada, Ren Kawamura, Masashi Yokose, Hardeep Singh, Taro Shimizu

Abstract readScoping Review
In one paragraph

Article in Journal of general internal medicine, 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

5 authors.

Yukinori HaradaDepartment of Diagnostic and Generalist Medicine, Dokkyo Medical University, Mibu, Japan. yharada@dokkyomed.ac.jp.ORCID 0000-0001-6042-7397
Ren KawamuraDepartment of Diagnostic and Generalist Medicine, Dokkyo Medical University, Mibu, Japan.
Masashi YokoseDepartment of Diagnostic and Generalist Medicine, Dokkyo Medical University, Mibu, Japan.
Hardeep SinghCenter for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
Taro ShimizuDepartment of Diagnostic and Generalist Medicine, Dokkyo Medical University, Mibu, Japan.

Funding

Japan Society for the Promotion of Science JP24K13372
6 · The paper itself

Abstract

backgroundLittle is known about how atypical disease presentations lead to diagnostic errors. Better definitions of atypical presentations may improve our understanding. We aimed to describe how atypical presentations were defined in studies of diagnostic errors in internal medicine.

methodsWe included papers that described the association between atypical presentations in adult patients and diagnostic errors in internal medicine, indexed from database inception to July 31, 2025. We excluded case reports and conference abstracts. The data were extracted through MEDLINE, Web of Science, CINAHL, Embase, Cochrane Library, Google Scholar, and MedRxiv searches.

resultsWe included 56 papers in this review. Thirty studies included a definition of atypical presentation, but there was a considerable heterogeneity among the definitions. Using basic qualitative content analysis, we developed a new approach (Primary, Suggestive, Uncommon, and Chameleon features-the PSUC approach) to describe clinical presentations and identified four patterns at high risk of diagnostic errors. Pattern 1 lacks Primary disease features (i.e., features always written in textbooks) but has Suggestive features (i.e., stimulating consideration of specific disease); Pattern 2 lacks Primary features but Suggestive and Uncommon features (i.e., uncommon but known features in specific disease) are present. Pattern 3 lacks Primary and Suggestive features but has Uncommon features and Pattern 4 is similar to 3 but with Chameleon features (i.e., primary features for other diseases). DISCUSSION: Atypical presentations in studies of diagnostic errors in internal medicine currently have high heterogeneity. A new approach to classify atypical presentations may be useful and warrants investigation in future research.

trial registrationOpen Science Framework www.osf.io/27d5m .

Indexed as

Diagnostic ErrorsInternal MedicineDiagnosis, DifferentialHumansatypical presentationsdiagnostic errorsinternal medicine

Identifiers

PMID41085962
PMCPMC13176419

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.