glomus tumour

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glomus tumour n.
1. a benign tumour arising from paraganglion cells associated with the vagus or glossopharyngeal nerves in the neck (see paraganglioma). In the middle ear they are called glomus tympanicum tumours; around the jugular vein they are called glomus jugulare tumours.

2. (glomangioma) a harmless but often painful tumour produced by malformation and overgrowth of a glomus, usually in the skin at the ends of the fingers or toes.