the different diseases such as follicular hyperplasia , ascending pharyngeal catarrh , perforating abscesses of the retropharyngeal lymphnodes , empyema and chondroid formation , guttural pouch mycosis leading to arrosion of the carotid artery , tympanites of the guttural pouch in foals caused by congenital defects of the eustachian tube flap and rarely observed tumors are discussed .
C0012634
diseases
C0027651
tumors