Elements of pathological anatomy . asometimes does behind a stricture ; or suppression of urine ensues, and thepatient dies. Of these occurrences, interesting cases are recorded by Morgagni,Brodie, Travers, and other pathologists. The symptoms which denote thepassage of a renal calculus are, violent pain in the lumbar region, excessiveirritability of the bladder, discharge of bloody urine, numbness of the thighs,and retraction of the testicles, with sickness at the stomach and severe consti-tutional disturbance. The large strongyle (Fig. 186), a species of lumbricoid worm, has been ob- * Morga
Elements of pathological anatomy . asometimes does behind a stricture ; or suppression of urine ensues, and thepatient dies. Of these occurrences, interesting cases are recorded by Morgagni,Brodie, Travers, and other pathologists. The symptoms which denote thepassage of a renal calculus are, violent pain in the lumbar region, excessiveirritability of the bladder, discharge of bloody urine, numbness of the thighs,and retraction of the testicles, with sickness at the stomach and severe consti-tutional disturbance. The large strongyle (Fig. 186), a species of lumbricoid worm, has been ob- * Morgagni, de Sedibus et cans. Morb., Epist. liv., § Traits des Maladies des Reins, t. i., p. 271. URETER. 709 served in a few rare instances in the human kidney. It is oftener met with inthe inferior animals, as the horse, ox, wolf, dog, otter, and racoon, and is ex-ceedingly common in the hogs which are brought to the slaughter-houses in theenvirons of Cincinnati. The situations in which it is ordinarily found are the Fig. pelvis and infundibular prolongations of the ureter, in which it is frequentlycoiled up in considerable numbers. Occasionally it makes its way into theparenchymatous structure, where it produces suppuration, atrophy, or othermischief. Mr. Owen supposes that the parasite is originally developed here,but this is probably a mistake. The strongyle is a very slender cylindrical worm, from two to three incheslong, of a light greyish color, interspersed with dark spots ; in some instancesit has been known to attain the length of three feet, with a diameter of fromfour to six lines. The male is smaller than the female, and tapers slightly to-wards each extremity. The head is obtuse, and furnished with an orbicularmouth, encircled by six hemispherical papillse : the body is transversely striated,and marked by two longitudinal impressions; and the tail, which is incurvated,ends in a dilated pouch, from the base of which projects a single penis. Inthe female, t
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