PMC5308525_01
Polypoid mass originating from the left palatine tonsil.
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A pedunculated mass with the base attached to the left palatine tonsil was observed (Figure 1).
Photomicrograph of the polypoid tonsillar mass showing reactive lymphoid tissue and dilated lymphatic channels (hematoxylin and eosin, 4x total magnification).
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Histopathologic examination showed mildly fibrous stroma containing dilated lymphatic channels and abundant lymphoid tissue with scattered small germinal centers (Figures 2 and 3).
Photomicrograph of the polypoid tonsillar mass showing a reactive germinal center and mildly edematous stroma underlying the squamous epithelium (hematoxylin and eosin, 20x total magnification).
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Histopathologic examination showed mildly fibrous stroma containing dilated lymphatic channels and abundant lymphoid tissue with scattered small germinal centers (Figures 2 and 3).
Photomicrograph of the underlying tonsil shows markedly reactive lymphoid tissue with abundant large well-formed germinal centers with polarized mantle zones (hematoxylin and eosin, 4x total magnification).
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In comparison to fibroepithelial polyp, the underlying tonsil showed markedly reactive lymphoid tissue with abundant large, well-formed, polarized germinal centers with well-defined mantle zones (Figure 4).