Evidence map›Paper›PMID 40677885›Full record

ArticleRadiology case reports2025

A case report and literature review on a large MDM2 negative retroperitoneal/psoas muscle well-differentiated liposarcoma mimicking intramuscular myxoma.

Victoria Xie, Guiliang Yu, Amanda Wiggett, Justin Rivard, Miao Lu, Yi Yan

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

Article in Radiology case reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. Article
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.

Victoria XieRady Faculty of Health Sciences, Interdisciplinary Health Program, University of Manitoba, Winnipeg, Manitoba, Canada.
Guiliang YuDepartment of Urology, Shenzhen Baoan Hospital, The Second Affiliated Hospital of Shenzhen University, Shenzhen, China.
Amanda WiggettDepartment of Pathology, Max Rady College of Medicine, University of Manitoba, Health Sciences Centre, Winnipeg, Manitoba, Canada.
Justin RivardDepartment of Surgery, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
Miao LuDepartment of Pathology, Max Rady College of Medicine, University of Manitoba, Health Sciences Centre, Winnipeg, Manitoba, Canada.
Yi YanDepartment of Diagnostic Radiology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Well-differentiated liposarcoma (WDLPS) typically presents as a large soft tissue mass in the retroperitoneal region. Amplification of the MDM2 gene is considered the gold standard for pathologic diagnosis. We present a case of 22 cm large intramuscular mass, located in the psoas muscle of the retroperitoneum. No macroscopic fat was identified on imaging, and the lesion featured extensive myxoid stroma, closely mimicking an intramuscular myxoma on both radiological and histopathological evaluation from biopsy sample. Final diagnosis was however revised to MDM2-negative WDLPS. This case highlights the diagnostic challenge posed by WDLPS with extensive myxoid stroma lacking MDM2 amplification and macroscopic fat on imaging. Accurate diagnosis relies on the integration of clinical, radiologic, and pathologic data, as well as thorough sampling of the tumor.

Indexed as

Intramuscular myxomaMyxoid neoplasm, Core biopsy, MDM2 geneWell-differentiated liposarcoma

Identifiers

PMID40677885
PMCPMC12268001

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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.