[Blind biliary pouch syndrome (sump syndrome). Diagnostic and therapeutic considerations].

One of the remote complications of choledochoduodenostomy is the formation of a biliary sack in the retroduodenal portion of the choledocho between anastomosis and the obstructed papilla. These results in the accumulation of gallstones and debris in the sack giving rise to pain, colics, infection, cholangitis and pancreatitis. Three cases are presented here: their main symptoms were pain and fever, without jaundice. The accurate diagnosis is carried out with E.R.C.P. which combines endoscopic visualization of anastomosis and papilla with probing and contrast injection in both of them. The definitive treatment was performed in two patients. One was treated surgically; the other using endoscopic papillotomy. The latter is recommended as the treatment of choice in the sump syndrome.