Large, irregular-shaped positive cells predominantly in follicles appear to be macrophages. Arrowhead indicates small, intensely positive cells, within high endothelial venules.

Identical +ty to that obtained using ab19906?

Should have diluted further as positivity is far too intense and cytoplasm of viable COR1 cells is moderately positive.

There is nuclear positivity: additionally there is Golgi positivity.

Comments are welcome.

From top to bottom: Abcam ab79351, ab97959, Santa Cruz sc-17320