Evidence map›Paper›PMID 33568103›Full record

ArticleBMC gastroenterology2021

Constitutional mismatch repair deficiency in childhood colorectal cancer harboring a de novo variant in the MSH6 gene: a case report.

Keinosuke Hizuka, Shin-Ichiro Hagiwara, Takatoshi Maeyama, Hitoshi Honma, Masanobu Kawai, Kiwamu Akagi, Michiko Yasuhara, Naohiro Tomita, Yuri Etani

Open access · goldAbstract readCase Reports
In one paragraph

Article in BMC gastroenterology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 35% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.

  1. Guideline
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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

9 authors at 3 institutions in 1 country.

Keinosuke HizukaDepartment of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, 840 Murodo-cho, Izumi, Osaka, 594-1101, Japan.
Shin-Ichiro HagiwaraDepartment of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, 840 Murodo-cho, Izumi, Osaka, 594-1101, Japan. hagi114@wch.opho.jp.ORCID http://orcid.org/0000-0003-2713-1329
Takatoshi MaeyamaDepartment of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, 840 Murodo-cho, Izumi, Osaka, 594-1101, Japan.
Hitoshi HonmaDepartment of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, 840 Murodo-cho, Izumi, Osaka, 594-1101, Japan.
Masanobu KawaiDepartment of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, 840 Murodo-cho, Izumi, Osaka, 594-1101, Japan.
Kiwamu AkagiDivision of Molecular Diagnosis and Cancer Prevention, Saitama Cancer Center, 780, Komuro, Ina-machi, Kitaadachi-gun, Saitama, 780362-0806, Japan.
Michiko YasuharaDivision of Lower GI Surgery, Department of Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
Naohiro TomitaDivision of Lower GI Surgery, Department of Surgery, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan.
Yuri EtaniDepartment of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, 840 Murodo-cho, Izumi, Osaka, 594-1101, Japan.
Osaka Women's and Children's Hospital · JPHyogo Medical University · JPSaitama Cancer Center · JP

Funding

Japan Agency for Medical Research and Development 18kk0205004Japan Society for the Promotion of Science JP18K07339
6 · The paper itself

Abstract

backgroundConstitutional mismatch repair deficiency (CMMRD) is caused by biallelic pathogenic variants in one of the mismatch repair genes, and results in early onset colorectal cancer, leukemia, brain tumors and other childhood malignancies. Here we report a case of CMMRD with compound heterozygous variants in the MSH6 gene, including a de novo variant in multiple colorectal cancers. CASE PRESENTATION: An 11-year-old girl, who presented with multiple spots resembling café-au-lait macules since birth, developed abdominal pain, diarrhea and bloody stool over two months. Colonoscopy revealed multiple colonic polyps, including a large epithelial tumor, and pathological examination revealed tubular adenocarcinoma. Brain magnetic resonance imaging (MRI) showed an unidentified bright object (UBO), commonly seen in neurofibromatosis type 1 (NF1). Genetic testing revealed compound heterozygous variants, c. [2969T > A (p.Leu990*)] and [3064G > T (p.Glu1022*)] in the MSH6 gene; c.2969T > A (p.Leu990*) was identified as a de novo variant.

conclusionsWe present the first report of a CMMRD patient with a de novo variant in MSH6, who developed colorectal cancer in childhood. CMMRD symptoms often resemble NF1, as observed here. Physicians should become familiar with CMMRD clinical phenotypes for the screening and early detection of cancer.

Indexed as

Brain NeoplasmsColorectal NeoplasmsNeoplastic Syndromes, HereditaryChildDNA-Binding ProteinsDNA Mismatch RepairFemaleHumansMutationDNA-Binding ProteinsG-T mismatch-binding proteinCafé-au-lait maculesCase reportConstitutional mismatch repair deficiencyMismatch repair geneNeurofibromatosis type1

Identifiers

PMID33568103
PMCPMC7876783
OpenAlexW3128198055

What OpenQuestion holds

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LicenceCC BY
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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.