Evidence map›Paper›PMID 28662062›Full record

ArticlePloS one2017

Reflectance confocal microscopy features of BRAF V600E mutated thin melanomas detected by immunohistochemistry.

Ana Claudia Urvanegia, Juliana Casagrande Tavoloni Braga, Danielle Shitara, Jose Humberto Fregnani, Jose Ivanildo Neves, Clovis Antonio Pinto, Ashfaq A Marghoob, Joao Pedreira Duprat, Gisele Gargantini Rezze

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
–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

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

  1. Pooled it
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  3. Article
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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.

Ana Claudia UrvanegiaCutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, Brazil.ORCID http://orcid.org/0000-0002-8987-8156
Juliana Casagrande Tavoloni BragaCutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, Brazil.
Danielle ShitaraDermaimage Medical Associates, São Paulo, Brazil.
Jose Humberto FregnaniBarretos Cancer Hospital, Teaching and Research Institute, Barretos, São Paulo, Brazil.
Jose Ivanildo NevesAnatomy Pathology Department, AC Camargo Cancer Center, São Paulo, Brazil.
Clovis Antonio PintoAnatomy Pathology Department, AC Camargo Cancer Center, São Paulo, Brazil.
Ashfaq A MarghoobDermatology Service, Memorial Sloan Kettering Skin Cancer Center, New York, United States of America.
Joao Pedreira DupratCutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, Brazil.
Gisele Gargantini RezzeCutaneous Oncology Department, AC Camargo Cancer Center, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The classification of melanoma into four histological subtypes has been questioned regarding its clinical validity in providing relevant information for treatment for metastatic tumors. Specific genetic alterations are associated with particular clinical and histopathological features, suggesting that these could be helpful in refining existing melanoma classification schemes. We analyzed BRAF V600E mutated melanomas to explore the Reflectance confocal microscopy (RCM) utility as a screening aid in the evaluation of the most appropriate patients for genetic testing. Thus, 32 melanomas were assessed regarding their BRAF V600E mutational status. Experts blinded to dermoscopic images and V600E immunohistochemistry results evaluated RCM images regarding previously described melanoma features. BRAF positive melanomas were related to younger age (p = 0.035), invasive melanomas (p = 0.03) and to the presence of hiporreflective cells (p = 0.02), epidermal nests (p = 0.02), dermal-epidermal junction nests (p = 0.05), edged papillae (p = 0.05), and bright dots (p = 0.05), and to absence of junctional thickening due to isolated cells (p = 0.01) and meshwork (p = 0.02). This study can not characterize other mutations in the BRAF, because the immunohistochemistry is specific to the type V600E. The findings should encourage the genetic evaluation of BRAF mutation. This study highlights the potential of RCM as a supplementary tool in the screening of BRAF-mutated melanomas.

Indexed as

MutationAdultAgedBiomarkers, TumorCutaneous Malignant MelanomaFemaleHumansImmunohistochemistryMaleMelanomaMicroscopy, ConfocalMiddle AgedProto-Oncogene Proteins B-rafRetrospective StudiesSkin NeoplasmsBiomarkers, TumorBRAF protein, humanProto-Oncogene Proteins B-raf

Identifiers

PMID28662062
PMCPMC5491027

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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.