ArticleSA journal of radiology2025
Lyre sign - Where schwannoma mimics a carotid body tumour.
Article in SA journal of radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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.
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Who cites it
2 citing papers in PubMed.
- Parapharyngeal Schwannoma: Limitations Regarding Diagnosis and Surgical Intervention-A Case Report and Focused Literature Review.Diagnostics (Basel, Switzerland) · 2026Article
- A Case of Shamblin III Carotid Body Tumor.Cureus · 2025Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nerve sheath tumours of the sympathetic chain are extremely rare and present a diagnostic challenge. A 42-year-old female presented with asymptomatic left cervical swelling. Imaging with sonography, CT, MR and angiography demonstrated a lesion splaying the carotid bifurcation, the lyre sign. Following surgical excision, histology revealed a schwannoma. Imaging features of carotid body tumours and parapharyngeal schwannomas can be similar, as both can cause splaying of the carotid bifurcation. The differential diagnosis of such tumours and their management are discussed. Contribution: This article highlights another cause of the lyre sign on radiological imaging besides carotid body tumours.
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