2282907-1 



ANIMAL, CJTTMrEA DCaifHIN Dr. Tarpley 

 90120128 S T 



cro-v 



JMP/TPVjlP 

 11 June 1990 



21. Stonach: Dloer, focal, noderate, with 

 h tguuiili z uj i i ( ji i i i nn diagnosis. 



22. StoDacii, pylorus: Gastritis, lynrhnrytic, focal, mild. 



23. Stonach, pylorus: Erosion, aaxte, f nmlly extensive, 

 moderate. 



24. Duodenum: Btteritis, lyntiyrfhl 1 1 ml nr, mil ti focal, 

 moderate. 



25. Spleen, c^sule: Ccngesticn and beonrxhage, 

 multifocal, mild. 



26. Trachea: Tradieitis, iyHY*vifttnir»ii^T- and 

 eosinophilic, nultifocal, mild. 



27. £sc|iiagus: Ulcer, acute, focal, moderate. 



28. Skin: Dermatitis, acute to subacute, focally 

 extensive, moderate, v±^ acute necxotizing vasculitis and 

 fiisrin thrcnbi. 



Ihe cause of deatii is bacterial pneumonia. Ihe bacterial mocphology and staining 

 characteristics are consistent with Escherichia ooli which was cultured frcm the 

 Ixng. Ihe pulmonary lesions eure ocoplex. Ihe distribution of the hesmrxhagic 

 pneumonia is consistent with hematogenous dissemination. Other findings that 

 support septinpmjn are the presenoe of gram-negative bacilli within pulmonary 

 veins, zuaite h^iatic arteritis and necxotizing vasculitis in the skin. Ihe 

 bacterial bronchopneumonia %ras of longer duration than the very acute hemorrhagic 

 pneumonia. The Ixmgworm a«pyici ntPti pneumonia was chronic and relatively mild. Ihe 

 conbined effects of the lung lesions %«ere fated. Ihe microvesicular vacuolar 

 change in hepatocytes is consistent vdth lipidosis. lesions of this type have been 

 associated with a variety of toodns in other species. Specigd stains failed to 

 reveal the cause of the necrotizing lesions in pulmonary and mesenteric lynph 

 nodes. The gastric iiloer probably caused significant pain. The splenic congestion 

 and raysular hanorxhage probably reflect the sqitioemia. Ihe causes of the other 

 lesions were not ^parent. 



JOHN M. FLETCHER, EMI, MFH 



Colcnel, VC, USA 



Chairman, Department of Veterineury Pathology 



IHOAS P. LIF5GCHB, ZfM 



MAT, VC, USA 



Department of Veterinary Pathology 



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