[Pathological anatomy of the extrahepatic bile ducts].

On the basis of literature and own pathologo-anatomic examinations descriptions of cholelithiasis, cholecystitis, cholangitis and carcinoma of the gall-bladder were given, taking into particular consideration problems relevant to practice. As to lithiasis age-specific and epidemiologic data are discussed, a survey of the modern principle of classification of concrements is given and the complications are emphasized. The inflammations of the gall-bladder are treated under the point of views of pathogenesis and newer etiological factors (allergic and virogenic forms). Apart from the structural changes of cholangitis the author enters its importance as way of distribution of the inflammation in direction to liver and Vater's papilla as well as to pancreas. The carcinoma of the gall-bladder is demonstrated under the aspect of frequency and high coincidence with cholelithiasis, in which case is particularly referred to the necessity of differentiated analysis of the findings of calculi. Distribution and metastasation condition the well-known unfavourable prognosis. Furthermore, the increased appearance of colon carcinomas in long-term cholecystectomized patients, which was discussed recently, is entered.