Evidence map›Paper›PMID 22709938›Full record

ArticleHead & neck oncology2012

Positron emission tomography in the detection of occult primary head and neck carcinoma: a retrospective study.

Gabriel Pereira, Joaquim Castro Silva, Eurico Monteiro

Expression of concernAbstract read
In one paragraph

Article in Head & neck oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. PET imaging biomarkers in head and neck cancer.European journal of nuclear medicine and molecular imaging · 2015
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Gabriel PereiraDepartment of Otorhinolaryngology, Braga Hospital, Sete Fontes, 4710-243, Braga, Portugal. gabrielpereiraggp@gmail.com
Joaquim Castro Silva
Eurico Monteiro

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe management of cervical lymph node metastases from an unknown primary tumor remains a controversial subject. Recently, Positron Emission Tomography (PET) has proved useful in the detection of these tumors, even after an unsuccessful conventional diagnostic workup. This study was performed to assess the role of PET in the detection of occult primary head and neck carcinomas.

methodsA retrospective analysis of a four year period at a tertiary referral oncology hospital was conducted.

resultsOf the 49 patients with cervical metastases of carcinoma from an unknown primary, PET detected a primary in 9 patients and gave 5 false positive and 4 false negative results. Detection rate, sensitivity, specificity and accuracy were of 18.4%, 69.2%, 86.1% and 81.6%, respectively. PET was also of substantial benefit in detecting distant metastatic disease and, thus, altered therapeutic strategies in a significant amount of patients.

conclusionsTherefore, PET is a valuable tool in the management of patients with occult primary head and neck carcinoma, not only because it provides additional information as to the location of primary tumors, but also due to the fact that it can detect unexpected distant metastases.

Indexed as

AdultAgedAged, 80 and overCarcinoma, Squamous CellFemaleFluorodeoxyglucose F18Head and Neck NeoplasmsHumansLymphatic MetastasisLymph NodesMaleMiddle AgedPositron-Emission TomographyRadiopharmaceuticalsRetrospective StudiesSquamous Cell Carcinoma of Head and NeckFluorodeoxyglucose F18Radiopharmaceuticals

Identifiers

PMID22709938
PMCPMC3448517

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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.