Investigation of choice for gall bladder stone is: March 2010: (A) OCG, (B) USG, (C) PTC, (D) X-ray
Answer is B. Ans. B: USG Investigation for gall stones: Ultrasound is the initial investigation of choice Diagnostic features on ultrasound include - Presence of gallstones - Distended thick-walled gallbladder - Pericholecystic fluid - Murphy's sign demonstrated with ultrasound probe If diagnostic doubt a HIDA scan may be useful-Will show failure of isotope (hydroxyiminodiacetic acid) uptake by gallbladder