Lymphoplasmacytic hemorrhagic cystitis in dog: Case report

Hematuria is a relatively common manifestation in dogs and cats secondary to disorders of the urinary tract, such as bacterial cystitis and urolithiasis, with its treatment being limited to the elimination of the primary cause. However, when hematuria is persistent or capable of causing significant hematological disorders, other less common causes should be investigated. A dog, pit bull, male, 12 years old, was admitted in the Hospital Veterinario da Universidade de Uberlandia (Veterinary Hospital of the Federal University of Uberlandia) with a major complaint of severe urinary bleeding 10 days ago. Laboratory tests showed normocytic and normochromic anemia, associated to intense hematuria. Ultrasound images revealed alterations compatible with chronic cystitis. Based on the results of the laboratory and imaging tests, treatments with antibiotic therapy associated to blood transfusions were started and the animal was referred for bladder biopsy. The histopathologic examination revealed lymphoplasmacytic hemorrhagic cystitis, a rare and very aggressive disease, which presents similar descriptions in human beings, but not yet described in dogs.