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A 73-year-old man presents acute ischaemia of the left humeral artery in the upper limb. He had a recent cerebral haemorrhage in combination with multiple cerebral ischaemic lesions. A transthoracic echocardiography showed an isoechogen, polylobate and mobile mass protruding into the left atrium (area size: 5 cm2), attached with a pedicle to the atrial slope of the anterior mitral leaflet (figure 1). A histological analysis of the upper limb material was performed (figure 2).
Handling editor Iskander Chaudhry.
Contributors IE wrote the case and collected the data. GR performed echocardiography and contributed to data collection. LR performed immunohistochemical analysis. AP performed echocardiography and reviewed the work.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Obtained.
Provenance and peer review Not commissioned; externally peer reviewed.