histopathologically , fibrinopurulent airsacculitis , pneumonia and bronchitis , multiple fibrinous serositis in the hepatic and splenic capsules , peri- and epicardium , and mesenterium , focal endoarteritis in the aortae , activation of reticuloendothelial cells in the spleen , and hepatic necrosis were noted .
C0229681
splenic capsules
C0037993
spleen