[Epidermotropic lymphosarcoma (mycosis fungoides) in a dog]

The clinical findings in a 16-year-old dog with mycosis fungoides are described. The definitive diagnosis was based on the characteristic histopathological lesions in the skin and mucosal biopsies. An immunohistological examination using monoclonal antibodies directed against the Thy-1 antigen of canine peripheral T lymphocytes did not give any further evidence of the identity of the infiltrating lymphoid cells.