The intestines were filled with fluid and the fluid inside the intestines was red. There were coalescing foci of ulceration with overlying friable material within the cecum. The spleen was mildly enlarged. All are moderately to heavily populated with lymphocytes in various stages of degeneration. Lymphocyte density is consistently high around arterioles.
Subcapsular sinuses contain lymphocytes and blood.
There are large regions of congestion and extravascular red blood cells in several nodes. Several nodes also had extensive areas of coagulation necrosis. The medullary sinuses are edematous. Diffuse, moderate, infiltration of mononuclear cells into the meninges, cerebrum, and cerebellum. Some edema in the meninges.