Differences between residual and primary choledocholithiasis in cholecystectomy patients.

Introduction: choledocholithiasis can be primary from stones originally formed in the choledocho or secondary from stones that have migrated from the gallbladder to the choledocho. The objective of this study was to determine the clinical differences between both types of choledocholithiasis in cholecystectomy patients.

Material And Methods: a comparative and retrospective study was performed of cholecystectomy patients who presented choledocholithiasis.

Metastatic melanoma of the gallbladder: an uncommon finding.

Melanoma metastasizes to the gastrointestinal tract in 2-4% of cases. In addition, it is the tumor that most frequently metastasizes to the gallbladder (50-67% of metastasis at this level). Even so, these metastases are infrequent.