Canine dysautonomia is an idiopathic condition resulting in loss of autonom
ic nervous system function. Recently, the prevalence of dogs diagnosed with
dysautonomia in the mid-Western United States has increased. In this study
the medical records and radiographic findings in 24 dogs,vith dysautonomia
were reviewed. A diagnosis of dysautonomia was made in 17 (71%) of the dog
s in this study by postmortem examination! the remaining 7 (29%) dogs were
diagnosed pharmacologically. The radiographic: findings supportive of dysau
tonomia include aspiration pneumonia, megaesophagus, or a distended stomach
, small bowel, or urinary bladder, In some instances, the disease radiograp
hically mimicked other disorders of the gastrointestinal tract, including m
echanical obstruction.