Evidence map›Paper›PMID 32759038›Full record

ArticleInternational journal of surgery case reports2020

Laparoscopic resection of retroperitoneal intra-psoas muscle schwannoma: A case report and extensive literature review.

Awadh AlQahtani, Mohammed N AlAli, Safaa Allehiani, Sulaiman AlShammari, Hussein Al-Sakkaf, Maria A Arafah

Open access · goldAbstract readCase Reports
In one paragraph

Article in International journal of surgery case reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 16 citations in OpenAlex.

  1. Posterolateral approach for lumbar plexus intra-psoas schwannomas: systematic review and comparative anthropometric analysis of surgical corridors with an illustrative case.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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  2. Article
  3. Article
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  5. Two giant connected retroperitoneal schwannomas: a rare case report.The Journal of international medical research · 2022
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  6. Review
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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

6 authors at 2 institutions in 1 country.

Awadh AlQahtaniDepartment of Surgery, College of Medicine, King Saud University, Medical City, King Khalid University Hospital, Riyadh, Saudi Arabia. Electronic address: dr_aq1@yahoo.com.
Mohammed N AlAliDepartment of Surgery, College of Medicine, King Saud University, Medical City, King Khalid University Hospital, Riyadh, Saudi Arabia. Electronic address: drmo7ammed2@gmail.com.
Safaa AllehianiDepartment of Surgery, College of Medicine, King Saud University, Medical City, King Khalid University Hospital, Riyadh, Saudi Arabia. Electronic address: dr-safaa9@hotmail.com.
Sulaiman AlShammariDepartment of Surgery, College of Medicine, King Saud University, Medical City, King Khalid University Hospital, Riyadh, Saudi Arabia. Electronic address: dr.sulimaan@gmail.com.
Hussein Al-SakkafDepartment of Radiology, King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia. Electronic address: dr.hussein.saggaf@gmail.com.
Maria A ArafahDepartment of Pathology, King Saud University, Riyadh, Saudi Arabia. Electronic address: marafah83@gmail.com.
King Khalid University Hospital · SAKing Saud University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSoft tissue tumors of Schwann cells in either the peripheral or cranial nerves are known as schwannomas or also as neurilemmomas. Limited data exists regarding psoas muscle schwannoma in the literature. Therefore, we have done an extensive literature review and found a total number of 46 cases of intra-psoas schwannoma including our case, which are summarized in this article along with reporting our new case. PRESENTATION OF CASE: We report a very rare case of primary left intra-psoas muscle schwannoma in a 39-year-old Saudi gentleman, smoker with an unremarkable medical and surgical history. The patient presented to the emergency department with exacerbated chronic lower abdominal pain since almost 2 years. After conforming the diagnosis, the patient was admitted electively and underwent uneventful laparoscopic hand-assisted resection. DISCUSSION: Schwannomas are neurogenic tumors which known to be solitary, benign, well circumscribed, encapsulated, and slow-growing tumors. Multiple imaging modalities are used to detect such a tumor. Although there is no consensus on the best surgical approach, endoscopic mini-laparotomy, laparoscopy (anterior [as in our case] or lateral), and robotic resection were reported with good outcomes.

conclusionRetroperitoneal schwannoma and intra-psoas muscle variant are a rare entity, with slow growing rate and risk of malignant transformation. Therefore, high index of suspicion, good follow-up, and large-cohort studies are encouraged.

Indexed as

Laparoscopic anterior approachNeurilemmomaPsoas muscleReviewSchwannoma

Identifiers

PMID32759038
PMCPMC7399171
OpenAlexW3046110844

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.