What could be the reason for pain and visible swelling in abdomen between waist and ribs?
Patient: back pain on right-side, lower back next to spine, severe two weeks ago, now lessening, but pain in right abdomen, and swelling midway between waist and ribs. Dr. prescribed pain pills. Had cat-scan 2 weeks ago which showed nothing. swelling is now visually apparent. Doctor: Do an ultrasonography of the affected region, and please detail your history regarding the swelling like onset, duration, any discharge etc.