Stone in the kidney, to which the above name is given, is occasionally found in canine practice. This affection is exceedingly difficult to diagnose unless the symptoms assume an unusual prominence.

The indications are to a certain extent those of inflammation of the kidneys; the manner of movement, the straddling gait, the arched back, and the tenderness over the loins are present as in that disease.

Pain is a prominent symptom, the urine is scanty, the efforts to void it are constant, and only a few drops result from each attempt. Haematuria is commonly associated. At times the suffering is intense. Fever may be present, the appetite becomes lessened, and emaciation follows.

The affection is necessarily fatal when the stone is too large to pass into the bladder through the passage called the ureter. At times when an animal has a stone in the kidney even of large size, he may suffer severely for days from the irritation it causes, then seemingly recover and be well for along time. But other attacks occur; the stone continues to increase in size filling up the kidney, causing that organ to waste away, or an abscess to result.

The treatment is symptomatic; during an attack of pain opiates are demanded as in colic; warm baths and occasionally hot injections aid in lessening the suffering. The food should be milk as recommended in haematuria.