. Diseases of cattle, sheep, goats and swine. Veterinary medicine. DIAPHRAGMATIC HERNIA. 497 The fissure seems most commonly to occur between the point where the cesophagus passes through the diaphragm and the ensiform carti- lage of the sternum, in which case mediastinal hernicTS most commonly supervene. As, on the other hand, the rumen, owing to its size, form and position, cannot readily be displaced, the reticulum and omasum are the viscera which most commonly pass into the thorax. Symptoms. In true accidental diaphragmatic hernia visceral dis- placement only occurs on the right side, and
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. DIAPHRAGMATIC HERNIA. 497 The fissure seems most commonly to occur between the point where the cesophagus passes through the diaphragm and the ensiform carti- lage of the sternum, in which case mediastinal hernicTS most commonly supervene. As, on the other hand, the rumen, owing to its size, form and position, cannot readily be displaced, the reticulum and omasum are the viscera which most commonly pass into the thorax. Symptoms. In true accidental diaphragmatic hernia visceral dis- placement only occurs on the right side, and symptoms of this are immediately apparent. The passage of the liver, reticulum, or omasum. Fig. 228.—Intra-mediastinal diaphragmatic hernia (viewed in position from the left side). P, Lung ; C, heart (displaced) ; D, diaphragm; H, hernial mass. into the right pleural sac compresses the lung, causes attacks of dyspnoea and acceleration of the heart's action. Percussion may not reveal any important change, but on auscultation digestive sounds can plainly be heard within the chest. The symptoms are far from being well defined. They may be more or less intense, and colic may or may not be present. Mediastinal hernia (Fig. 223) appears to develop slowly, and it is only by degrees that the viscera become displaced. There is then no sudden change, no clearly marked disturbance, but simply a certain amount of digestive irregularity, together with loss of appetite, cessation of rumination, slight indigestion, and mode- rate tymi^anites. The disturbance is really due to obstruction in the alimentary canal and displacement of the reticulum and omasum, so that rumination and deglutition are affected. Very often this condition may last for weeks, in either a stationary K K. 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
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectveterin, bookyear1920
