instruction: hello doctor my brother age is having severe abdominal pain and he has history of pancreatitis he is currently in the hospital and yesterday mri was done below is the highlight of mri report reports pancreatic body and tail appear mild atrophy with peripancreatic fat streakiness accessory pancreatic duct draining the body and tail region appear dilated umm with irregular wall and drain separately into minor papilla main pancreatic duct is dilated 6mm and joint to cod forming common channel of length 17mm before drain into duodelenum distal end of common duct show a hypnointense calculus of size 4mm a hypnointense calculus is also seen at proximal part of main pancreatic duct liver appears normal in size portal venous system appears normal gall bladder appears normal in appearance and wall thickness no o calculi detected cod is dilated 1mm with dilated ihr spleen appear normal in size visualise portions of l kidneys appear normal in size now doctors are saying we need to do tenting I wanted to know why tenting is required and is it necessary at this stage what will be the complications after tenting what if we do not do tenting now what are the alternatives for tenting