Confirmation of canine leproid granuloma syndrome in New Zealand

Confirmation of canine leproid granuloma syndrome in New Zealand
Peer reviewed

Abstract

Canine leproid granuloma syndrome (CLGS) has not been officially reported in New Zealand. The seminal report describing this syndrome is in the Australian Veterinary Journal, 1998, where the results of a questionnaire circulated amongst veterinary pathologists and practitioners in Australia were reported. It included one response of a case seen in New Zealand, but no details of that case were given, despite CLGS being described in the literature as “common in New Zealand”. By injudicious use of references, the international literature has propagated the idea that the condition, including molecular identification, was confirmed in New Zealand, yet none of the articles cited actually confirmed that. An outbreak of skin granulomas in a group of approximately 35 working dogs was investigated, in which skin samples were sent to the Mycobacterium reference laboratory, Victoria, Australia, for PCR testing and molecular characterisation. Results of the clinical presentation, histological features and molecular studies conformed to the published details of CLGS. In particular, the nucleotide sequence of the internal transcribed spacer region, amplified from the mycobacterial DNA present in the clinical specimen provided, was identical to GenBank® Accession Number EF611177. That sequence is representative of the causative agent of CLGS in cases from Australia, the United States of America and Brazil. Although acid-fast organisms are occasionally seen in skin granulomas in dogs in New Zealand, this is the first confirmed identification of CLGS in this country. This is also the first report of an outbreak situation amongst a group of dogs.


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