[Juxtapapillary diverticuli and biliary lithiasis]. / Divertículo paravateriano y litiasis biliar.

Duodenal diverticuli has been associated with biliary stones, specially in the common bile duct. Its presence alters the anatomy of the region of the papilla difficulting its identification and cannulation. ERCP was performed in 800 patients with suspicion of bilio-pancreatic disease, 60 (7.5%) of these patients (39 male and 21 female) had juxtapapillary diverticuli (single diverticuli in 52, 2 in 7 and 3 in 1 patient). In these patient cannulation of the common bile duct was possible in 43 (72%), only the pancreatic duct in 5 (8%) and no cannulation in 12 (20%). Common bile duct stones were found in 22 patients, papillotomy was indicated in 14 patients and was performed in 12, in 2 patients it was not possible to position the papillotomy.