Hi, my identical twin sister just had a check up on Friday. After some menstral spotting and some right side (under the rib cage) discomfort the dr. did an ultra-sound. He found an enlarged liver and thickening of the wall of the gallbladder. She went in for blood tests today, and will have a Cat scan later this week. She is 33 yrs old, in extremly good health and never drank. Any ideas? Thanks in advance. The waiting (for results) is killing us, and any insight would be appreciated.