Abstract
The purpose of this study was to investigate antrochoanal polyps with cholesterol granuloma (CG), which is a granulomatous reaction to cholesterol crystals that has been precipitated in the tissue. It is usually associated with chronic middle ear disease, common in the mastoid air cells, less common in the orbit and rarely found in the paranasal sinuses. The aim of this study was to analyze the etiology and pathological findings of antrochoanal polyps associated with cholesterol granuloma. This is a retrospective study of five cases of antrochoanal polyp with cholesterol granuloma, (four males and one female between 15 and 77 years of age) who presented with nasal obstruction, rhinorhea and snoring. The cases were clinically and histologically reviewed. Four patients were treated endoscopically and one by intranasal polypectomy without endoscope. There was no recurrence during the follow-up between 24 to 36 months (mean 31.2 months). Five uncommon cases with antrochoanal polyp with cholesterol granuloma are presented. The cholesterol granulomas consist of fibrous granulation tissue containing cholesterol crystals with surrounding foreign body giant cells. The pathogenesis of antrochoanal polyp with cholesterol granuloma is unclear, and further investigations are needed.
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Shvili, I., Hadar, T., Shvero, J. et al. Cholesterol granulomas in antrochoanal polyps: a clinicopathologic study. Eur Arch Otorhinolaryngol 262, 821–825 (2005). https://doi.org/10.1007/s00405-004-0898-6
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DOI: https://doi.org/10.1007/s00405-004-0898-6