Article ; Online: Microscopic detection of Leptospira bacterial organisms in urine sediment from a young dog with leptospirosis and a review of the pathobiology and diagnosis of canine leptospirosis.
2022 Volume 52, Issue 1, Page(s) 112–118
Abstract: Samples collected from an 11-month-old Dachshund-mix dog with a history of acute azotemia, fever, and enlarged and irregular kidneys were received at the Colorado State Veterinary Diagnostic Laboratory (CSU VDL). The submitting veterinarians were ... ...
| Abstract | Samples collected from an 11-month-old Dachshund-mix dog with a history of acute azotemia, fever, and enlarged and irregular kidneys were received at the Colorado State Veterinary Diagnostic Laboratory (CSU VDL). The submitting veterinarians were concerned about lymphoma versus acute nephritis/pyelonephritis. The CSU clinical pathology laboratory received urine for urinalysis and kidney aspirates for cytologic evaluation. Urine had also been submitted for aerobic culture and Leptospirosis PCR, and serum was submitted for Lepto-5 microscopic agglutination testing (MAT). Upon examination of a wet mount of the urine sediment, technical staff noted "vibrating" clumps of granular-appearing material throughout the slide, which prompted the preparation of a stained sediment slide for pathologist review. Very small, faintly staining organisms were observed, and an attempt was made to picture-match these with published reports of Leptospira in dog urine, but none could be found. In addition, some references claimed that Leptospira organisms are not seen in urine with light microscopy. The suspicion that these organisms were Leptospira sp. was supported by the MAT results and later confirmed by PCR. The organisms subsequently exhibited strong positive immunolabeling for the Leptospira antigen. This case report provides a searchable record of Leptospira organisms visualized by routine light microscopy in dog urine during natural infection and a review of canine leptospirosis pathobiology and diagnosis. |
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| MeSH term(s) | Dogs ; Animals ; Leptospira/genetics ; Leptospirosis/diagnosis ; Leptospirosis/veterinary ; Leptospirosis/microbiology ; Agglutination Tests/veterinary ; Polymerase Chain Reaction/veterinary ; Serum ; Antibodies, Bacterial ; Dog Diseases |
| Chemical Substances | Antibodies, Bacterial |
| Language | English |
| Publishing date | 2022-05-26 |
| Publishing country | United States |
| Document type | Review ; Case Reports |
| ZDB-ID | 2114702-4 |
| ISSN | 1939-165X ; 0275-6382 |
| ISSN (online) | 1939-165X |
| ISSN | 0275-6382 |
| DOI | 10.1111/vcp.13129 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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