Evidence map›Paper›PMID 35979213›Full record

ArticleFrontiers in medicine2022

Rapid progression of marginal zone B-cell lymphoma after COVID-19 vaccination (BNT162b2): A case report.

Akinori Sekizawa, Kenichi Hashimoto, Shinichi Kobayashi, Sawako Kozono, Takahiro Kobayashi, Yusuke Kawamura, Motohiro Kimata, Naoya Fujita, Yosuke Ono, Yasuhiro Obuchi and 1 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Frontiers in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

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  8. Neurolymphomatosis mimicking a Guillain-Barré syndrome triggered by COVID-19 vaccination.Neuropathology : official journal of the Japanese Society of Neuropathology · 2025
    Article
  9. Article
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  12. mRNA: Vaccine or Gene Therapy? The Safety Regulatory Issues.International journal of molecular sciences · 2023
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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 at 1 institution in 1 country.

Akinori SekizawaDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Kenichi HashimotoDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Shinichi KobayashiDepartment of Hematology, National Defense Medical College, Tokorozawa, Japan.
Sawako KozonoDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Takahiro KobayashiDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Yusuke KawamuraDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Motohiro KimataDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Naoya FujitaDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Yosuke OnoDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Yasuhiro ObuchiDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
Yuji TanakaDepartment of General Medicine, National Defense Medical College, Tokorozawa, Japan.
National Defense Medical College · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

B-cell lymphomas are neoplastic diseases occasionally associated with chronic inflammation. mRNA vaccines for coronavirus disease 2019 (COVID-19) induce inflammatory responses, which often lead to fever and lymphadenopathies indistinguishable from lymphomas. Although both lymphadenopathies and lymphomas can be influential, the correlation between them is unclear. Herein, we present the first case of marginal zone B-cell lymphoma following mRNA COVID-19 vaccination. An 80-year-old Japanese woman presented with a right temporal mass that appeared the morning after she was administered her first mRNA COVID-19 vaccination (BNT162b2). The mass gradually decreased in size but persisted over 6 weeks after her first vaccination (3 weeks after her second vaccination). At her first visit to our hospital, ultrasound revealed the size of the mass to be 28.5 × 5.7 mm, and computed tomography revealed multiple lymphadenopathies in the right parotid, submandibular, jugular, and supraclavicular regions. Initially, we suspected head-and-neck benign lymphadenopathy as a side effect of vaccination. Nine weeks later, the number of swollen submandibular and parotid glands increased, and the lymph nodes further enlarged. Finally, the right temporal mass was diagnosed as marginal zone B-cell lymphoma based on immunohistochemical and flow cytometry findings of biopsy specimens. Our findings suggest that although 4-6 weeks of observation for lymph node inflammation after the second vaccination is recommended, malignancy should also be considered in the differential diagnosis of lymphadenopathy following vaccination.

Indexed as

B cellBNT162b2COVID-19lymphadenopathylymphomamarginal zone B-cell lymphomamRNA vaccine

Identifiers

PMID35979213
PMCPMC9377515
OpenAlexW4289130227

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.