Journal of the American Veterinary Medical Association · 1984 · 32 citations · 0 references
Veterinary MedicineVeterinary MicrobiologyVeterinary PathologyHistopathologyProtozoologyVeterinary Parasitic DiseasesProtozoal InfectionsProtozoan DiagnosisProtozoan PathogenesisProtozoan ZoonosesVeterinary TrematodiasisZoonotic Parasitic DiseasesCytopathologic DiagnosisGranulomatous LesionsGranulomatous ReactionsProtozoal PathologyProtozoal Tissue InfectionsProtozoan Disease Diagnosis
A 3-year-old Collie bitch was euthanatized two weeks after the onset of blindness and deafness. The hearing deficit had been localized by clinical signs, brain stem auditory evoked responses, and impedance audiometry. Protothecosis was diagnosed by cytologic and histologic examinations. The organism was identified as Prototheca zopfii . Organisms and granulomatous lesions were found in kidney, heart, liver, skeletal muscle, thyroid gland, colon, bronchial lymph node, brain, and cochlea.