Evidence map›Paper›PMID 40450649›Full record

ArticleJournal of ultrasound2026

"Tadpole tail sign" in high-grade synovial sarcoma of the ulnar nerve: a case report.

Chetna Mishra, Ankur Gulati, Neha Nischal, Dheeraj Gautam, Akram Javed, Jatinder Pal Singh

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PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of ultrasound, 2026. 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

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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.

Chetna MishraDepartment of Radiology, MSK Radiology, Medanta The Medicity, Gurugram, Haryana, 122001, India.
Ankur GulatiDepartment of Radiology, MSK Radiology, Medanta The Medicity, Gurugram, Haryana, 122001, India.
Neha NischalHoly Family Hospital, New Delhi, India.
Dheeraj GautamDepartment of Radiology, MSK Radiology, Medanta The Medicity, Gurugram, Haryana, 122001, India.
Akram JavedMax Smart Superspeciality Hospital, New Delhi, India.
Jatinder Pal SinghDepartment of Radiology, MSK Radiology, Medanta The Medicity, Gurugram, Haryana, 122001, India. sinjatin@gmail.com.ORCID http://orcid.org/0000-0002-8794-7381

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Synovial sarcomas of the peripheral nerve (SSPNs) are rare aggressive tumors with only a few cases documented in the literature. Among these, the involvement of the ulnar nerve was identified in seven patients, however without in depth radiological description. To the best of our knowledge, this is the first case report with high-resolution ultrasound, MR imaging and a histopathological description of a high-grade synovial sarcoma of the ulnar nerve. SSPNs are frequently misinterpreted as peripheral nerve sheath tumor making the diagnosis difficult and often challenging. Our case report highlights an unusual instance of a malignant synovial sarcoma originating from the ulnar nerve in a 28-year-old woman, which rapidly progressed with a worse outcome. We present the specific imaging and histological findings of this monophasic spindle cell type lesion with immunocytochemical markers, and describe a new "tadpole tail sign" on ultrasound, to allow its early recognition and prevent misdiagnosis.

Indexed as

Peripheral Nervous System NeoplasmsSarcoma, SynovialUlnar NerveAdultDiagnosis, DifferentialFemaleHumansMagnetic Resonance ImagingUltrasonographyHigh-frequency ultrasoundHistopathologyMRPeripheral nerve sheath tumorsSynovial sarcomaUlnar nerve

Identifiers

PMID40450649
PMCPMC13588994

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