Figure 3
From: Antibody response against Trichinella spiralis in experimentally infected rats is dose dependent
Histopathology of rat lymphoid organs on day 8 pi (16 000 ML, left panel) and day 42 pi (14 000 ML, right panel), H&E, magnification 40×. A. Mandibular lymph node 8 dpi, note small size, inactive (primary) follicles (PF) and paracortex (PC). B. Mandibular lymph node 42 dpi, activated appearance with multiple stimulated secundary follicles (SF), paracortex (PC) and medullary chords (M) C. Spleen 8 dpi, small and inactive appearance compared to D. Spleen 42 dpi, activated appearance: prominent secondary follicles (SF) and marginal zone (MZ) E. Thymus 8 dpi, smaller than F. with disappearance of cortex producing a reverse corticomedullary contrast compared to F. Thymus 42 dpi, prominent size and appearance with clear contrast between cortex (C) and medulla (M).