Initial investigation of choice in obstructive jaundice is: (A) USG, (B) ERCP, (C) CT scan, (D) PTC
Answer is A. Transabdominal ultrasound scan is universally established as the most useful first line imaging study in the jaundiced adult.It provides an excellent evaluation of liver parenchyma & assessment of the presence/absence of bile duct dilatation. Reference:SRB's manual of surgery,5th edition,page no:656.