Welcome to our community! Your husband was very lucky to have resection surgery so quickly after diagnosis.
Resection is a very major surgery, and patients can feel the impact of the surgery for quite a long time even after recovering and after the incision heals. In the immediate weeks, the liver regrows which may produce some sensations. It is common to feel twinges, tightness and other small effects months and even years after. This is because the surgery can leave some small scarring and adhesions, and the GI tract has been rearranged a bit. I am now five years past resection, and I still feel twinges from time to time. In my case, it took about 6-7 weeks after surgery to feel mostly back to normal. At three weeks past, I was still feeling discomfort and fatigue from the surgery.
If the tightness is painful, worsening and/or significantly affects your husband’s activity, this should be raised with the doctor, to be sure nothing more concerning is afoot.
I wish your husband a tranquil recovery. Please take a look at the caregiver resources on the Cholangiocarcinoma Foundation website.
Take care, happy holidays! Mary