Evidence map›Paper›PMID 40242860›Full record

ArticleBMJ case reports2024

Single and multiple keratoacanthomas after a recent black tattoo in two patients.

Malak Al-Gawahiri, Sebastiaan A S van der Bent, Pieter Clahsen, Lydia E Vos

Abstract readCase Reports
In one paragraph

Article in BMJ case reports, 2024. 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. Is tattooing associated with an increased risk of cancer? A systematic review and meta-analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
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

4 authors.

Malak Al-GawahiriDermatology, Haaglanden Medical Center, The Hague, The Netherlands.ORCID http://orcid.org/0000-0003-4319-2594
Sebastiaan A S van der BentDermatology, Alrijne Hospital, Leiden, The Netherlands.
Pieter ClahsenPathology, Haaglanden Medical Center, The Hague, The Netherlands.
Lydia E VosDermatology, Haaglanden Medical Center, The Hague, The Netherlands l.vos@haaglandenmc.nl.ORCID http://orcid.org/0000-0002-2374-7364

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As studies on keratoacanthomas (KAs) within tattoos are scarce, our comprehension on the development of KAs in tattoos remains limited. Notably, existing studies predominantly focus on KAs found in tattoos containing red ink. This study addresses these gaps by documenting two cases of KAs within recently applied black and grey tattoos. The first case, a woman in her mid-40s, presented with two painful hyperkeratotic lesions in the tattooed skin on her left forearm and, notably, one similar simultaneously grown asymptomatic papule outside the tattooed skin. The second case, a man in his early 40s, presented with a painful hyperkeratotic nodule on a tattoo on the right leg. Histopathology showed that the nodules in both patients were compatible with a KA. After discussing therapeutic options, both patients opted for a wait-and-see approach, whereafter, the nodules regressed within months.

Indexed as

KeratoacanthomaTattooingAdultFemaleHumansMaleMiddle AgedDermatologicalDermatologyExposuresSkin cancer

Identifiers

PMID40242860
PMCPMC11590445

What OpenQuestion holds

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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 OpenQuestion graph.