Evidence map›Paper›PMID 42117133›Full record

ArticleOxford medical case reports2026

A diagnostic pitfall in cold agglutinin disease: KMT2D-mutated CAD-associated lymphoproliferative disorder with a CLL-like immunophenotype.

Yusuke Okamoto, Hiroshi Arima, Kenichi Ishiyama, Kazuhisa Chonabayashi, Junya Kanda, Kouhei Yamashita, Masakazu Fujimoto, Hironori Haga, Yasuhito Nannya, Seishi Ogawa and 1 more

Abstract readCase Reports
In one paragraph

Article in Oxford medical 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

11 authors.

Yusuke OkamotoDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.ORCID https://orcid.org/0000-0002-9515-8139
Hiroshi ArimaDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Kenichi IshiyamaDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Kazuhisa ChonabayashiDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Junya KandaDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Kouhei YamashitaDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Masakazu FujimotoDepartment of Diagnostic Pathology, Kyoto University Hospital, 54 Shogoin-kawahara-cho, Sakyoku, Kyoto 606-8507, Japan.
Hironori HagaDepartment of Diagnostic Pathology, Kyoto University Hospital, 54 Shogoin-kawahara-cho, Sakyoku, Kyoto 606-8507, Japan.
Yasuhito NannyaDepartment of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Seishi OgawaDepartment of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.
Akifumi Takaori-KondoDepartment of Hematology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8303, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cold agglutinin disease (CAD) is an uncommon hemolytic anemia by complement-fixing IgM autoantibodies and is frequently associated with a distinct clonal B-cell lymphoproliferative disorder (CAD-LPD). We report a woman in her 50's with progressive fatigue who presented with hemolytic anemia and an IgM-κ paraprotein. Bone marrow examination revealed a small clonal B-cell population (5.8%) with a CLL-like immunophenotype. Despite the absence of peripheral lymphocytosis or established treatment indications for chronic lymphocytic leukemia (CLL), B-cell-directed therapy, including ibrutinib and venetoclax plus rituximab, was administered over the course of approximately one year based on the initial diagnostic impression, but failed to control hemolysis. Targeted next-generation sequencing identified a

Indexed as

CAD-associated lymphoproliferative disordercold agglutinin diseaseKMT2D mutation

Identifiers

PMID42117133
PMCPMC13157618

What Socratic holds

Textmetadata
LicenceCC BY
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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 Socratic graph.