Fig. 1: Histopathological examination of tonsil tissue samples. | Pediatric Research

Fig. 1: Histopathological examination of tonsil tissue samples.

From: The first proteomics analysis of tonsils in patients with periodic fever, aphthous stomatitis, pharyngitis, and adenitis syndrome (PFAPA)

Fig. 1

a Representative H&E-stained histologic tonsil sections from PFAPA patients, showing the overall architecture of the tonsil (x100). b Immunohistochemical staining for LCA in palatine tonsil germinal centers, highlighting leukocyte common antigen distribution (x100). c CD20, indicating B-cell localization within the germinal centers (x100). d CD3, showing T-cell distribution (x100). e CD4, highlighting helper T-cell presence (x100). f CD8, indicating cytotoxic T-cell localization (x100). g CD15, showing granulocyte presence (x100). h CD56, indicating natural killer cell distribution (x100). i CD61, highlighting platelet and megakaryocyte presence (x100).

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