چكيده لاتين :
Postmortem examination of a 5.5-year-old Holstein cow with history of sudden death showed a very
huge spleen (120 x 45 x 10 ern) associated with severe haemoperitoneum. Histopathological findings
included extensive infiltration of medium to large sized lymphocytic and lymphoblastic cells with small
amounts of cytoplasm, round nuclei with coarsely granular chromatin in the spleen, and limited foci of
similar cellular infiltration in the liver. This case was diagnosed as a fatal splenic rupture caused by an
atypical malignant lymphoma.