{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T13:14:40Z","timestamp":1782393280731,"version":"3.54.5"},"reference-count":47,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,4,14]],"date-time":"2024-04-14T00:00:00Z","timestamp":1713052800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JPM"],"abstract":"<jats:p>Background: Nasal polyps (NPs) represent the end-stage manifestation of chronic rhinosinusitis (CRS), a relatively common pathological condition encountered in all ages of life. Methodology: The aim of our study was to evaluate the histological features and inflammatory cellular components of NPs in a retrospective cohort (143 cases) of pediatric, adult and elderly populations in order to discuss the possible morphological age-related differences statistically documented. Results: In the pediatric group, the inflammatory infiltrate presented many eosinophils mixed with lymphocytes, while in the adult population, lymphocytes and plasma cells were mainly evident, frequently with a perivascular distribution or with the formation of subepithelial lymphoid nodules. In the elderly population, inflammation was less evident and was associated with cavernous-like angecthatic structures with thrombotic stratification. Nearly all morphological findings exhibited statistically significant values among differently aged subgroups. Conclusions: Our results support the presence of histological specificities of NPs at different ages of life, providing new insight into the etiopathogenesis of NPs. The future role of biological therapies, mainly in cases refractory to already available standard medical and surgical treatments, may be analyzed by a prospective study using a larger cohort with a long-term evaluation also in relation to a possible relapse.<\/jats:p>","DOI":"10.3390\/jpm14040414","type":"journal-article","created":{"date-parts":[[2024,4,15]],"date-time":"2024-04-15T10:24:26Z","timestamp":1713176666000},"page":"414","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["The Morphology of Nasal Polyps in Different Age Groups: Histopathological Features"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1132-1761","authenticated-orcid":false,"given":"Vincenzo","family":"Fiorentino","sequence":"first","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6260-6310","authenticated-orcid":false,"given":"Maurizio","family":"Martini","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7226-4596","authenticated-orcid":false,"given":"Cosimo","family":"Galletti","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4387-7174","authenticated-orcid":false,"given":"Cristina","family":"Pizzimenti","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Biomediche, Odontoiatriche e Delle Immagini Morfologiche e Funzionali, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-5806-2307","authenticated-orcid":false,"given":"Mariausilia","family":"Franchina","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Ieni","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guido","family":"Fadda","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruno","family":"Galletti","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1561-4246","authenticated-orcid":false,"given":"Giovanni","family":"Tuccari","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana Dell\u2019adulto e Dell\u2019et\u00e0 Evolutiva Gaetano Barresi, Universit\u00e0 Degli Studi di Messina, 98122 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,4,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.4193\/Rhin20.401","article-title":"European Position Paper on Rhinosinusitis and Nasal Polyps 2020","volume":"58","author":"Fokkens","year":"2020","journal-title":"Rhinol. 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