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Rectal stricture in an ostrich (Struthio camelus)
B R Berridge1, B A Hague, R Barthel
1Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station 77843, USA.
Summary
A severe rectal stricture caused by fibrinonecrotic proctitis led to the euthanasia of an ostrich. This condition, marked by tissue death and inflammation, was similar to lesions seen in pigs.
Area of Science:
- Avian Medicine
- Veterinary Pathology
Background:
- Ostrich (Struthio camelus) medicine often involves diagnosing gastrointestinal issues.
- Anorexia, lethargy, and constipation are common presenting signs in affected birds.
Observation:
- An 18-month-old female ostrich presented with a five-day history of anorexia, lethargy, and constipation.
- Exploratory celiotomy revealed mesenteric volvulus and a focal rectal narrowing.
Findings:
- Necropsy identified fibrinonecrotic proctitis and a 3-cm circumferential rectal stricture.
- Histological examination showed effacement of the rectal wall by fibrovascular tissue, vascular thrombosis, and necrotizing vasculitis.
- The rectal lesions were histologically similar to those observed in feeder pigs with fibrinonecrotic colitis.
Implications:
- This case highlights a rare cause of intestinal obstruction in ostriches.
- The histological similarity suggests potential sharedPathogenic mechanisms or etiological agents between avian and porcine fibrinonecrotic colitis.
- Further research into avian gastrointestinal diseases is warranted.