Pericholecystic fluid means fluid around the gall bladder (Peri=around, cholecystic=gall bladder), and denote tissue swelling. The fluid is indicative of the inflammation around the gall bladder. This should looked for gallbladder infection, called as cholecystitis and needs further investigations like HIDA scan. This is all the more important with the ongoing symptoms like severe off and on pain, fever and lethargy. An ultrasound too may be essential, which may detect either gallbladder stone or pancreatitis.
Please feel free for your follow up questions.
I am sorry for this delay. My internet connection is erratic and I was unable to open up the page. I would say, go to ER, without waiting for Monday, as high grade fever, his ultrasound findings and his associated restlessness warrant investigations and diagnosis as soon as possible. Apart from the investigations I had mentioned, his liver function tests, pancreatic enzymes and other relevant and related blood work needs to be done as soon as possible.
I wish a very speedy recovery to your son.
I again apologize for the delay.
Best wishes and kindest regards.
It is relieving that his blood work is normal though a pericholecystic fluid is not normal, especially in the presence of fever. ER personal are usually too busy to explore and consider all the possibilities. His primary care physician should get an ultrasound and it would be prudent to contact him for the further evaluation.