Conclusion
Giant choledochal cysts is a very rare disease which can be diagnosed using abdominal CT scanning since it offers a great deal of information that is helpful in both diagnosis and planning for surgical approaches . Abdominal ultrasound scan is the initial screening in patients with choledochal cysts and can also be used to make diagnosis antenatal. Use of MRI and MRCP techniques is increasing for the diagnosis of choledochal cysts however they are not easily available and is expensive. Complete surgical excision is very important since it reduces the chances of pancreatitis and biliary malignant transformation.