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Updated: Aug 15, 2026

12:48
Blood Collection from the American Horseshoe Crab, Limulus Polyphemus
Published on: October 13, 2008
Abstract:
A series of 10 haemorrhagic polyps of the equine nasal cavity is described. The lesions show haematoma formation, abundant haemosiderin in macrophages and giant cells, and organising fibrous tissue. In one case, angiomatoid lesions were observed in the mucous membrane of the paranasal sinuses and it is suggested that some haemorrhagic nasal polyps may originate from pre-existing haemangiomatous areas in the respiratory mucosa.
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