Strangles, Infectious Rliiuo-adenitis. 83 



fills not only the gland tissue, but a large amount of the sur- 

 rounding connective tissue as well, there is a great accumulation 

 of lymphoid cells, and more or less extensive pus cavities, con- 

 taining usually a white, creamy product. In the early stages the 

 glands may be hard and nodular, as in glanders, but this condition 

 is very transient, so that the rule is to find an extensive surrounding 

 exudation filling up the whole intermaxillary space, and having a 

 great abundance of small round cells with double or triple nuclei. 

 In the older cases there is usually the open abscess, and if the 

 case is an indolent one there may be extensive organization of 

 the exudate with formation of dense, fibrous tissue. In some 

 instances the nasal sinuses are filled with muco-pus. 



When lesions extend farther implicating the pharynx and 

 larynx, the mucosa of these parts shows the same redness, con- 

 gestion, cloudy swelling and desquamation with, in some in- 

 stances, small, submucous abscesses, and in others extensive in- 

 filtration of the submucosa with lymph so as to narrow or even 

 close the lumen of the larynx. The guttural pouches may be 

 filled with pus though this is far from constant. The pharyngeal 

 lymph glands, are nearly always involved and often the lymph- 

 gland in the parotid so that a general infiltration of the surrounding 

 parts is met with. 



If the chest is implicated there is congestion of the bronchial 

 mucosa, engorgement of the smaller bronchia, air sacs and cells 

 with pus, collapse, carnifaction or congestion of lobules, in some 

 cases pulmonary abscess, and, finally, swelling and not infre- 

 quently abscess of the bronchial glands. Pleurisy is a not un- 

 common accompaniment, appearing it may be as a simple exten- 

 sion, from the lung, or, in the worst forms, from rupture of me- 

 diastinal or glandular abscesses into the cavity and severe infec- 

 tion of the entire pleural walls. The pericardium is exceptionally 

 involved and coagula on the tricuspid valves have been met with 

 (Zschokke). 



Circumscribed phlegmonous exudates and small abscesses are 

 sometimes found in the mouth (tongue, soft palate, cheeks) and 

 less frequently in the oesophagus. 



The stomach may show congestions, petechiae, circumscribed 

 haemorrhages, ulcers, and abscesses of the gland tissue or sub- 

 mucosa. Rupture of the walls may follow abscess (Cadeac). 



