Dear Twin 954
It is impossible and not right to specualte or judge any thing without knowing details. is your partener male or female and age? What were the symptoms prior to suergery? what all investigations were done before surgery? Neither CT or HIDA will help "NOW", though preop CT can be of some help (HIDA, I dont think can guide us, MRCP is a better option). Was this operation performed in acute stage (with pain in emergency) or as a cold case (elective palnned surgery).
A old case of large Gall stone espicially if impacted at the fundus of GBladder can erode through the deuodenum (stone pases through the duodenum and causes bowel obstruction- called gall stone ileus or it can just press the doudenum causing doduodenal obstruction- called Bouveret syndrome), but in both conditiond symptoms are of bowel obstruction and not of just gall sones.
Duodenal injury is a knowm complication of Laparosocpic surgery but I dont think one should blame the doctor because some times it is a old gase of gall stone with lots of adhesions and inflammation and rarely stone pressure and ischemia cases a fistula (opening) between gall bladder and duodenum (NOT ULCER AS STATED BY YOUR DOCTOR). A perfoartaed ulcer getting sealed by gall bladder (instead of omentum) is highly unlikely probablity.
Unfortunately duodenal injurey is difficult/ expensive to manage and it take time to recover. Hope your partneris doing well.
Best wishes
Dr Tewari
Impossible to say - could be either explanation
Sometimes gallstones can erode through into duodenum to cause a duodenal perforation
The preoperative radiology studies e.g. CT sonogram HIDA scan could shed some light onto the situation
Discuss this with his surgeon
Good luck