ArticleCureus2026
Arteriovenous Malformation of the Trapezius Muscle: A Report of a Rare Case.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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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Authors and funding
2 authors.
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Abstract
Arteriovenous malformations (AVMs) are rare congenital fast-flow vascular anomalies characterized by direct arteriovenous shunting through a nidus. Intramuscular AVMs are uncommon and are frequently mistaken for intramuscular hemangiomas or venous malformations, and involvement of the trapezius muscle is exceptionally rare. We report the case of a 31-year-old woman with a five-year history of chronic left-sided cervical pain that had been managed as a muscle spasm with no improvement. Examination revealed a fixed trapezius mass with localized tenderness. Ultrasonography and magnetic resonance imaging (MRI) demonstrated an intramuscular tangle of dilated vessels, and catheter angiography confirmed a high-flow AVM. Following multidisciplinary discussion, the patient underwent transarterial embolization and sclerotherapy with near-complete obliteration of the shunt and remained symptom-free without recurrence at two years. AVMs are suggested to be considered in persistent, atypical neck and shoulder masses, where minimally invasive endovascular treatment can yield excellent outcomes.
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