3.1 Gross lesions and Histopathology
Grossly, in most of the cases presented for necropsy, discrete grayish
white nodules of various sizes were observed predominantly in liver and
spleen and less commonly in heart, lungs, proventriculus and mesentery.
Enlargement of liver and spleen were invariably present. None of the MD
suspected carcasses showed enlargement or loss of striation in sciatic
nerve. Histopathological examination showed extensive infiltration with
pleomorphic cells and lymphocytes.