Tehreem Fatima, Iffat Saleem, Mahmood Ayyaz, Ghulam Ahmad.
Laparoscopic Anatomy of the patterns of union of Cystic Duct to the common Hepatic Duct.
J Coll Physicians Surg Pak Jan ;12(12):725-27.

Objective: This study was carried out to determine the various patterns of union of cystic duct to the common bile duct and to find and document the most common patterns. Design: An observational study. Place and Duration of Study: Mayo and National Hospital, Lahore. Subjects and Methods: The study is based upon laparoscopic dissection of 600 patients done between December 1995 to December 2000. These dissections were carried out as a part of laparoscopic cholecystectomies performed on these patients. The pattern of union of cystic duct with the common hepatic duct was studied and anomalies documented. Results: It was noted that the original pattern of the union on the right lateral side is seen only in 32% cases, whereas an overwhelming majority i.e. 68% does not follow the known anatomic patterns. The patterns seen in the study were grouped into three different types. Conclusion: It was evident from this study that the common pattern described by the text books does not represent the true picture and indeed a lot of variations exist in this area.

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