[Spontaneous bilio-digestive fistula of lithiasic etiology. Experience of 41 cases].

Spontaneous biliary-digestive fistulas represent a rare pathology, but an important one given the diagnostic difficulties and high operative mortality that still characterise the obstructive forms in particular. Personal experience of 41 cases is reported with a discussion of the symptoms, diagnostic procedures and surgical indications. The complete clinical aspecificity of the fistulas and their frequent association with choledocholithiasis and stricturing odditis are emphasised.