title: [Ultrastructure of blood lymphocytes in dairy cows with chronic lymphocytic leukemia].
abstract: The morphology of blood lymphocytes was studied ultrastructurally in cows with chronical lymphocytic leucosis (CLL) and in healthy controls. A significantly higher occurrence of the so-called nuclear pockets in the leucaemic lymphocytes was found (13.8% v. 0.83% in healthy animals). The surfaces of lymphocytes were stained with ruthenium red; this showed the possibility of differentiating two distinct populations of lymphocytes in peripheral blood. In this way, a prevalence of B-lymphocytes, constituting 89.7% of all lymphocytes, was demonstrated in animals suffering from CLL.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000097:blood*; D005260:Female; D007945:Leukemia, Lymphoid / Q000097:blood / Q000662:veterinary*; D008214:Lymphocytes / Q000648:ultrastructure*; D012430:Ruthenium Red; D013194:Staining and Labeling
chemical_list: D012430:Ruthenium Red
vernacular_title: Ultrastruktura krevních lymfocytů u dojnic s chronickou lymfocytární leukémií.