12 year old MN Chihuahua – couple of weeks of lethargy, anorexia and intermittent vomiting.  Distended abdomen.  Very bizarre cystic structure that appeared to be coming out of the ileocolic region, but I could not find an obvious mass.  It had a rounded cranial end starting just caudal to the stomach and left limb of the pancreas (could not make a communication with the hypoechoic, rounded pancreas) and extended in more oblong shape to several cms cranial to the urinary bladder.  There were loops of small bowel that seemed to be contained within the cystic structure and then other loops of small bowel outside the structure.  Most of the loops within the structure were corrugated/very angry.  short of CT and exploratory surgery, would love your thoughts!