Intracerebral lymphosarcoma in a cow

A case of intracerebral lymphosarcoma is described in a 2-year-old Holstein-Friesian cow, which developed depression and anosmia for two weeks. Serological tests for bovine leukemia virus were positive. Necropsy findings included multicentric whitish yellow tumoral masses involving several organs such as superficial and internal lymphnodes, spleen, kidney, liver, intestine, and uterus. In the right telencephalic hemisphere there was a circunscribed, discrete, rounded, pink-yellowish 5.0 x 5.0 x 4.5cm mass, which involved the parietal, temporal e occipital lobes. All the multiple tumoral masses had the same histological aspect consisting of neoplastic small lymphocytes with little atypia and scant stroma.

diseases of cattle; cerebral lymphosarcoma; cerebral lymphoma; bovine leukosis; oncology; pathology