SUMMARYThe concentrations of the acute-phase proteins, serum amyloid-A (SAA) and haptoglobin (Hp), were determined in the plasma of healthy cows (n=25) and cows with spontaneous acute (n=6), subacute (n=37), or chronic (n=7) inflammatory diseases. The plasma concentration of SAA alone, Hp alone, and the Hp/SAA ratio, differed significantly (p<0.001) between healthy animals and animals with inflammatory diseases. Plasma Hp concentrations in the group of cows with acute inflammatory diseases were significantly (p<0.01) different from those in the group with chronic inflammatory diseases. Moreover, the Hp/SAA ratio in chronic inflammatory diseases was significantly different from this ratio in acute (p<0.01) and subacute (p<0.05) inflammatory diseases. It is therefore concluded that the plasma concentrations of SAA and Hp and the Hp/SAA ratio are useful parameters to distinguish healthy animals from animals with inflammation and can be helpful in distinguishing between acute and chronic of inflammatory diseases.

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Summary Non‐surgical correction of nephrosplenic entrapment of the left colon was attempted in 27 cases. In two cases the method failed and a laparotomy was necessary. Two other horses had a recurrence, one of which underwent laparotomy because of torsion of the caecal body.

SUMMARYA 15-year-old Dutch warmblood mare was presented because of lethargy, which had been present for several weeks, and severe anaemia. Total protein was high and serum electrophoresis revealed a monoclonal peak in the alpha-2 region. Monoclonal immunoglobulin, IgG(T), was detected by immuno-electrophoresis in serum and urine. Postmortem examination revealed a relatively large number of plasmacytoid cells in the bone marrow and a monotonous population of plasmacytoid cells in the spleen.These findings are suggestive of a plasma cell myeloma.

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