Chronic abscesses in cats associated with an organism resembling Mycoplasma.

Three cats were admitted to the Ontario Veterinary College with chronic nonhealing abscesses which had not responded to a variety of local and systemic treatments.Smears made from the purulent exudate and stained with Wright's, Giemsa's and Gram's stains did not reveal the presence of any bacteria, yeast or fungal hyphae. Bacteria could not be cultured aerobically or anaerobically but organisms resembling mycoplasmas were cultured in two cases. All cats responded to tetracycline therapy.