Encrusting cystitis in a cat secondary to Corynebacterium urealyticum infection.
An 18-year-old male neutered domestic shorthair cat was presented for investigation of haematuria and lethargy. The cat had sustained a traumatic T3-L3 lesion 5 years prior resulting in upper motor neuron incontinence. On further investigation the cat was found to be hyperkalaemic, hypothermic and dehydrated. Ultrasonography of the bladder revealed a markedly hypoechoic, thickened bladder wall with an irregular, hyperechoic mucosal layer. The patient responded to symptomatic and supportive care and was discharged. Despite initial improvement, the patient returned 10 days after discharge with recurrence of haematuria and lethargy. Ultrasound-guided aspiration and culture of the material on the mucosal surface of the bladder confirmed diagnosis of UTI caused by Corynebacterium urealyticum. On post-mortem examination, gross and histopathological features were consistent with encrusting cystitis. This is the first case report of encrusting cystitis in a cat. C urealyticum, an uncommon urinary tract pathogen in small animals, should be considered in patients with predisposing conditions.
Valentine Charlton Cat Centre, Faculty of Veterinary Science, University of Sydney, NSW 2006, Australia. katherine.briscoe@sydney.edu.au
Katherine A
KA
Briscoe
Vanessa R
VR
Barrs
Scott
S
Lindsay
Karon L
KL
Hoffmann
Kenneth R
KR
Cockwill
Gary
G
Muscatello
Julia A
JA
Beatty
D000818:Animals; D002371:Cat Diseases / Q000382:microbiology*; D002415:Cats; D003352:Corynebacterium / Q000145:classification / Q000302:isolation & purification; D003354:Corynebacterium Infections / Q000662:veterinary*; D003556:Cystitis / Q000382:microbiology / Q000662:veterinary*; D008297:Male; D018084:Ultrasonography, Interventional / Q000662:veterinary; D001743:Urinary Bladder / Q000000981:diagnostic imaging / Q000473:pathology; D014552:Urinary Tract Infections / Q000382:microbiology / Q000662:veterinary*