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Type: Artigo de periódico
Title: Lymphoid polyps of the palatine tonsil
Author: Barreto, I
Juliano, P
Chagas, C
Altemani, A
Abstract: Tonsillar lymphoid polyps are uncommon lesions that have rarely been studied. The authors describe the clinical, histopathologic, and immunohistochemical features of 6 tonsillar polyps in which lymphoid tissue represented more than 80% of the lesion. Presenting symptoms were tonsillar mass and/or dysphagia. No predisposing factor was detected. Microscopically, all polyps contained follicles with germinal centers, crypts lined by lymphoepithelium, and a small amount of fibrous tissue in the center of the lesion. B cells (CD20+), T cells (CD45RO+), plasma cells (kappa+ and lambda+) and vessels (lymphatic, D2-40+; blood, CD34+) presented distribution and architectural patterns as expected for lymphoid tissue of a palatine tonsil. Tonsillar lymphoid polyps are possibly hamartomas characterized by overgrowth of lymphoid elements, which maintain an architectural pattern and cellular composition similar to those of the palatine tonsil.
Subject: palatine tonsil
lymphoid tissue
Country: EUA
Editor: Sage Publications Inc
Citation: International Journal Of Surgical Pathology. Sage Publications Inc, v. 15, n. 2, n. 155, n. 159, 2007.
Rights: fechado
Identifier DOI: 10.1177/1066896906299121
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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