Skip to main content
. 2017 Sep 21;12(9):e0185138. doi: 10.1371/journal.pone.0185138

Fig 4. Oral lymphoid tissues exhibit a greater degree of histologic change than non-lymphoid tissues.

Fig 4

The degree of histologic change in oral lymphoid tissues (retropharyngeal lymph node and tonsil) was significantly higher than in non-lymphoid tissues (tongue, buccal mucosa, and salivary gland) (p<0.001). The degree of histologic change was significantly greater in the retropharyngeal lymph node (p<0.001), palatine tonsil (p<0.001), and tongue (P = 0.002) than in the salivary gland. A greater degree of histologic change was also observed in the retropharyngeal lymph node compared to the buccal mucosa (p<0.001) (ANOVA with Tukey test for multiple comparisons).