. The pathology and differential diagnosis of infectious diseases of animals. Veterinary medicine -- Diagnosis; Communicable diseases in animals. 208 AVIAN TUBERCULOSIS the surrounding tissue. The removed, necrotic nodules have a roughened surface. The color is greyish or whitish in the early stages, but in the later cues it changes to a yellowish tint. Occasionally there are two distinct crops of tubercles, one consisting of no- dules 4 to 6 milli- meters in diameter and separated by a centimeter or more, and the other of close- ly set grayish tuber- cles to mm. in diameter. In some
. The pathology and differential diagnosis of infectious diseases of animals. Veterinary medicine -- Diagnosis; Communicable diseases in animals. 208 AVIAN TUBERCULOSIS the surrounding tissue. The removed, necrotic nodules have a roughened surface. The color is greyish or whitish in the early stages, but in the later cues it changes to a yellowish tint. Occasionally there are two distinct crops of tubercles, one consisting of no- dules 4 to 6 milli- meters in diameter and separated by a centimeter or more, and the other of close- ly set grayish tuber- cles to mm. in diameter. In some cases the tubercles are few in number but larger i n size. The liver cells be- tween the tubercles are usually in a state of more or less degen- eration, and frequent- ly fat globules are numerous. The blood spaces are more than normally dis- tended with blood. The lesions in the spleen, like those in the liver, consist of minute or larger tubercles of a grayish or of a yellowish tint. The central portions of the larger tubercles are often homo- geneous, darker in color and more or less hyaline in appear- ance and consistency. The tubercular growths in the intestine start in the walls of the intestine. They present a glistening appearance, gray- ish in color and firm to the touch. Frequently they are confluent. When single they vary from i to 10 qim. in ' diameter. They are usually sessile on the intestine but on the mesentery they are frequently pedunculated, varying from. Fig. 47. A p/io/ograph of a tuberculous liver from a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Moore, Veranus A. (Veranus Alva), 1859-1931. Ithaca, N. Y. , Taylor & Carpenter
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