Peer-reviewed veterinary case report
Dog with chronic diarrhea diagnosed with widespread Mycobacterium
By Horn, B et al.·Published in Australian veterinary journal·2000·School of Veterinary Clinical Science, Australia·View original on PubMed →
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Original publication title: Disseminated Mycobacterium avium infection in a dog with chronic diarrhoea.
- Species:
- dog
Plain-English summary
A 3-year-old Maltese-cross dog was brought to the vet after suffering from chronic diarrhea and not wanting to eat for four months. Despite various treatments, the dog developed severe abdominal pain and other serious symptoms, including blood in the stool. Unfortunately, the condition did not improve, and the dog was euthanized for further examination. A necropsy revealed a widespread infection caused by Mycobacterium avium, which affected multiple organs.
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Abstract
A 3-year-old Maltese-cross dog presented with a 4-month history of chronic diarrhoea and inappetence. Poorly regenerative anaemia, leukocytosis and hypoproteinaemia were evident on several occasions. Biopsies of stomach, duodenum and colon revealed marked infiltration of mucosae by macrophages containing many acid-fast bacilli. Similar organisms were numerous in a faecal smear. Melaena, hematochezia and severe abdominal pain developed and were unresponsive to therapy. Following euthanasia and necropsy, histiocytic cells containing acid-fast bacilli were found throughout the gastrointestinal tract, mesenteric and peripheral lymph nodes, spleen, liver, kidney and lungs. The organism was identified as Mycobacterium avium by bacterial culture and polymerase chain reaction testing.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/10904815/