Archive image from page 210 of The pathology and differential diagnosis The pathology and differential diagnosis of infectious diseases of animals differentpathology00moorrich Year: 1908 MORBID ANATOIMY 189 the lymphatic system to the lymph gjlands draining the lungs where the lesions first appear. If the specific bacteria are first lodged in the intestinal mucosa, primary tuberculous ulcers may develop or they may pass into the mesenteric lymphatics or the portal vein. It may happen that the bacteria may be carried by means of the lymph or blood stream and lodged in any part of the body, su
Archive image from page 210 of The pathology and differential diagnosis The pathology and differential diagnosis of infectious diseases of animals differentpathology00moorrich Year: 1908 MORBID ANATOIMY 189 the lymphatic system to the lymph gjlands draining the lungs where the lesions first appear. If the specific bacteria are first lodged in the intestinal mucosa, primary tuberculous ulcers may develop or they may pass into the mesenteric lymphatics or the portal vein. It may happen that the bacteria may be carried by means of the lymph or blood stream and lodged in any part of the body, such as the brain, kidneys, spleen, testes, ovaries, bones, joints, and subcutaneous and intermus- cular glands and serous membranes. The evidence at hand, Fig. 35. A draiviuo- of a section ofveryyoniiix tubercles in spleen ( T/io>na). however, seems to show that in a large majority of the primary lesions are located in one of the five following organs : (i) in the lungs or the lymphatic glands draining them, (2) in the lymphatic glands about the head, (3) in the mesenteric glands and intestines, (4) in the portal glands or liver sub- stance itself, and (5) in the generative organs and udder. It not infrequently happens that the apparent primary lesions occur on the pleura, peritoneum, meninges or synovial membranes while the organs remain free from disease. In such cases the lesions consist of many tubercles varying from
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