Correct Answer -A Chronic pancreatitis REF: Sutton's Radiology 7th edition volume 1 page 798, Sabiston textbook of surgery 18th ed chapter 5 Chronic pancreatitis is characterized by irregularities of the pancreatic ducts, ductal strictures, and areas of duct dilation. The major as well as the side-branch ducts may be involved. For unexplained reasons, some patients with chronic pancreatitis develop dilated main pancreatic ducts (large duct disease), whereas others retain ducts of normal or even smaller than normal caliber (small duct disease). Some patients with chronic pancreatitis can be shown to have major ducts that have the appearance of a "chain of lakes" or a "string of pearls" that is the result of segments of dilated duct separated by areas of ductal stricture

Correct Answer -C Hydatid cyst [Re, Radiology Review Manual by Dahnert 5/e, p 699; vviviv.emedicine.00In/Ined/TOPIC629.htn] • Separated membranes floating with the cyst give the appearance of water lily. • It is pathognomonic of hydatid cyst.