Figure 3: Fig. 3a shows sections showing massively infarcted mesenteric lymph nodes with only a narrow peripheral rim of spared cortical tissue with lymphocytes. Almost the whole nodal parenchyma is necrotic, strongly eosinophilic with ghosts of lymphocytes and of other tissue components. The reticulin network is preserved. In the perinodal fibroadipose tissue, is an abundant inflammatory exudate composed of fibrin and polymorphonuclear leukocytes.
Fig. 3b shows the presence of infarction of only the germinal centre. This probably can be explained by the centripetal nature of the anatomical blood supply of the mesenteric lymph nodes [1].