Medical treatment of gallstone indicated in A/E:
For good results, medical therapy should be limited to radiolucent stones smaller than 5 mm in diameter. Stones larger than 15 mm in size rarely dissolve. Pigment stones are not responsive to UDCA therapy to produce a lamellar liquid crystalline phase in bile that allows a dispersion of cholesterol from stones. Ursodeoxycholic acid decreases cholesterol saturation of bile. UDCA may also retard cholesterol crystal nucleation.
GB should be functioning
Gallstone should be radiolucent
Gallstone should be radio opaque
Patient is unfit for surgery
Misc.