Cutaneous pyogranuloma in a cat caused by virulent Rhodococcus equi containing an 87 kb type I plasmid.
A 2-year-old intact male domestic shorthaired cat presented with a chronic, nodular, ulcerated, cutaneous lesion on the right thoracic limb. Histological and cytological examination revealed a pyogranulomatous inflammation with basophilic organisms in the macrophages. A virulent form of Rhodococcus equi containing an 87 kb type I (VapA) virulence plasmid was identified from cultures of biopsy samples. This report describes the clinicopathological features, plasmid profile and virulence of this case of R equi infection.
Farias
M R
MR
Center of the Agraries and Ambiental Sciences, College of Veterinary Medicine, São José dos Pinhais, Brazil.
Takai
S
S
Ribeiro
M G
MG
Fabris
V E
VE
Franco
S R V S
SR
D000193:Actinomycetales Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D000818:Animals; D002371:Cat Diseases / Q000382:microbiology* / Q000473:pathology; D002415:Cats; D004269:DNA, Bacterial / Q000032:analysis; D017809:Fatal Outcome; D008297:Male; D010957:Plasmids / Q000235:genetics; D016929:Rhodococcus equi / Q000235:genetics / Q000472:pathogenicity; D014774:Virulence / Q000235:genetics
D004269:DNA, Bacterial