Text book of veterinary medicine, Volume 3 (of 5)

Chapter 90: HYPERTROPHY OF THE KIDNEY.

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Comprehensive clinical manual detailing disorders of the nervous, genitourinary, ocular, and integumentary systems in domestic animals. It begins with principles of neural control and general symptomatology, classifying motor, sensory, and psychic disturbances and methods for localizing lesions. The text describes specific conditions such as seizures, paralysis, meningitis, intracranial hemorrhage, tumors, and toxicoses, and outlines diagnostic signs and pathological causes. Later sections address urine analysis and renal disease, urinary tract inflammation and calculi, and diseases of the eye, skin, and constitutional systems, combining pathological description with clinical signs, differential diagnosis, and practical guidance for examination and interpretation.

HYPERTROPHY OF THE KIDNEY.

Hypertrophy of both kidneys has not been recorded in domestic animals. On the other hand the extraordinary development of one in compensation for the loss or atrophy of the other is not uncommon. In this the organ follows the general law of adaptation, seen in the double symmetrical organs (testicle, etc.) and the more so that its functional activity is indispensable to life. Among causes are: blocking of an ureter by calculus, worms, neoplasm, nephritic abscess, gangrene, etc. The enlargement of the remaining kidney is a vicarious act and essentially a physiological one.

If compensation is perfect, it may be impossible to detect symptoms apart from those of the primary disease.

Prognosis. Life is endangered in case of any subsequent kidney disease.