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Volume 25(1), Spring 2015

Reprint paper

Bloody diarrhoea: what's going on?

Endoscopically visualized lesions, histologic findings and bacterial invasion in the gastrointestinal mucosa of dogs with acute haemorrhagic diarrhoea syndrome

by Stefan Unterer, Kathrin Busch, Miriam Leipig, Walter Hermanns, Georg Wolf,

Reinhard Straubinger, Ralf Mueller and Katrin Hartmann


On endoscopy, the stomach was macroscopically normal, without signs of erosions or ulcerations.

However, the duodenum showed severe changes with haemorrhage, oedema, hyperaemia and increased mucosal friability....

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Biospies showed mucosal necrosis and adherence of rod-shaped bacteria to necrotic villous tips.

Bacteria could be cultured and were identified as C. perfringens Type A by MALDI-TOF and multiplex PCR.

Case report


One patient of the study, a 10-year-old male neutered Yorkshire Terrier, presented with acute haemorrhagic vomiting and diarrhoea. No underlying cause for his symptoms could be found by history, physical examination, blood work and faecal exam.


Hyperaemia, erosions and haemorrhage

The most important macroscopic findings in the intestinal tract, which could be ...

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AHDS instead of HGE


The acute onset of bloody diarrhoea and vomiting in dogs is often referred to as haemorrhagic gastroenteritis (HGE). Wrong, say the authors of this study, ...

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Background: Aetiology of haemorrhagic gastroenteritis (HGE) syndrome in dogs is unknown and histopathologic and microbial investigations have only been performed post mortem.

Objective: To identify characteristic intra vitam endoscopic and histologic mucosal lesions, as well as bacterial species, within the mucosa of dogs with HGE. ...

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