An Abd U/S [**3-19**] showed stones/sludge in gallbladder and the pt underwent ERCP [**3188-3-21**] which showed diffuse dilation of CBD up to 10 mm without filling defects (although gallstones noted in GB), and dilation of pancreatic duct to 6 mm.
 The patient has a normal caliber common bile duct.
(ROOT (NP (NP (DT An) (NN Abd) (NN U/S)) (S (-LRB- -LSB-) (SYM **) (CD 3-19) (X (SYM **)) (-RRB- -RSB-) (S (VP (VBD showed) (SBAR (S (NP (NP (NP (NN stones/sludge)) (PP (IN in) (NP (NN gallbladder)))) (CC and) (NP (DT the) (NN pt))) (VP (VBD underwent) (NP (NN ERCP)))))) (FRAG (-LRB- -LSB-) (NP (NP (NP (SYM **) (CD 3188-3-21) (X (SYM **)) (-RRB- -RSB-)) (SBAR (WHNP (WDT which)) (S (VP (VBD showed) (NP (NP (JJ diffuse) (NN dilation)) (PP (IN of) (NP (NNP CBD)))) (NP (QP (IN up) (TO to) (CD 10)) (NN mm)) (PP (IN without) (S (VP (VBG filling) (NP (NNS defects)) (PRN (-LRB- -LRB-) (SBAR (IN although) (S (NP (NNS gallstones)) (VP (VBN noted) (PP (IN in) (NP (NN GB)))))) (-RRB- -RRB-))))))))) (, ,) (CC and) (NP (NP (NP (NN dilation)) (PP (IN of) (NP (JJ pancreatic) (NN duct)))) (PP (TO to) (NP (CD 6) (NN mm)))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (DT a) (JJ normal) (NN caliber) (JJ common) (NN bile) (NN duct))) (. .)))
( ( ( An ( Abd U/S ) ) ( -LSB- ( ** ( 3-19 ( ** ( -RSB- ( ( showed ( ( ( ( stones/sludge ( in gallbladder ) ) and ) ( the pt ) ) ( underwent ERCP ) ) ) ( -LSB- ( ( ( ( ( ** ( ( 3188-3-21 ** ) -RSB- ) ) ( which ( ( ( showed ( ( diffuse dilation ) ( of CBD ) ) ) ( ( ( up to ) 10 ) mm ) ) ( without ( ( filling defects ) ( -LRB- ( ( although ( gallstones ( noted ( in GB ) ) ) ) -RRB- ) ) ) ) ) ) ) , ) and ) ( ( dilation ( of ( pancreatic duct ) ) ) ( to ( 6 mm ) ) ) ) ) ) ) ) ) ) ) ) . )
( ( The patient ) ( ( has ( a ( normal ( caliber ( common ( bile duct ) ) ) ) ) ) . ) )