Evidence map›Paper›PMID 30526171›Full record

ReviewThe Journal of international medical research2019

Excision of tumors in the parapharyngeal space using an endoscopically assisted transoral approach: a case series and literature review.

Zhe Chen, Ya-Lian Chen, Qi Yu, Shui-Hong Zhou, Yang-Yang Bao, De-Sheng Shang, Ling-Xiang Ruan

Open access · goldAbstract readReview
In one paragraph

Review in The Journal of international medical research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 10% 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, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Transoral robotic surgery (TORS) vs. endoscopy-assisted transoral approach (EATA) for parapharyngeal space tumors: a systematic review and meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Pooled it
  2. Clinical Outcomes with Transoral and External Surgical Approaches for Resection of Parapharyngeal Space Tumors: Systematic Review and Meta-Analysis.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale
    Pooled it
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  7. [Efficacy analysis of 23 cases of parapharyngeal space tumors removed by oral approach assisted by plasma and high-definition endoscopic system].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2024
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  12. [Surgical technique and risk control of tumor resection in parapharyngeal space via transoral endoscopic parapterygomandibular ligament internal approach].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2022
    Article
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  14. Transoral Endoscopic Localization of the Parapharyngeal Internal Carotid Artery.Journal of neurological surgery. Part B, Skull base · 2022
    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

7 authors at 1 institution in 1 country.

Zhe Chen1 Department of Otolaryngology, Hangzhou City, Zhejiang Province, China.
Ya-Lian Chen1 Department of Otolaryngology, Hangzhou City, Zhejiang Province, China.
Qi Yu1 Department of Otolaryngology, Hangzhou City, Zhejiang Province, China.
Shui-Hong Zhou1 Department of Otolaryngology, Hangzhou City, Zhejiang Province, China.ORCID https://orcid.org/0000-0002-7163-2289
Yang-Yang Bao1 Department of Otolaryngology, Hangzhou City, Zhejiang Province, China.
De-Sheng Shang2 Department of Radiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Ling-Xiang Ruan2 Department of Radiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveMagnetic resonance imaging (MRI) provides important information regarding tumors in the parapharyngeal space (PPS), revealing their origin, whether they are benign or malignant, and their relationships with surrounding structures.

methodsTwelve tumors in the PPS were completely excised using an endoscopically assisted transoral approach (EATA). The MRI features were analyzed.

resultsTen pleomorphic adenomas confirmed on postoperative pathological examination had the parotid pedicle sign. A fat space between the tumor and parotid gland may distinguish such a tumor from a tumor arising from a minor salivary gland in the prestyloid space and a tumor arising from the deep lobe of the parotid gland. Both the jugular vein and carotid artery were displaced posteriorly in all 10 cases of pleomorphic adenomas. The principal features of the two schwannomas confirmed on postoperative pathological examination were separation of the internal carotid artery and internal jugular vein and anteromedial displacement of the internal carotid artery, suggesting that the tumors originated in the poststyloid space. In this review, 95 tumors were excised by the EATA in the English-language literature.

conclusionsMRI renders differential diagnosis possible. PPS tumors may be completely excised via an EATA guided by tumor features evident on preoperative MRI.

Indexed as

Adenoma, PleomorphicAdultFemaleFollow-Up StudiesHumansMagnetic Resonance ImagingMaleMiddle AgedNatural Orifice Endoscopic SurgeryPharyngeal NeoplasmsPharynxPrognosisRetrospective StudiesTomography, X-Ray Computedendoscopic surgerymagnetic resonance imagingParapharyngeal spaceparotid pedicle signtransoral approachtumor

Identifiers

PMID30526171
PMCPMC6421391
OpenAlexW2904106716

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.