Imaging by ultrasonography, MRCP, or CT scan usually make the diagnosis. MRCP can be used to define the lesion anatomically prior to surgery. Occasionally<unk>  is diagnosed or confirmed on ERCP when requested to alleviate obstructive jaundice or cholangitis by means of an endoscopically placed stent, or when USS has been wrongly reported as choledocolithiasis.
Mirizzi's syndrome
Hartnup disease
Ascher's syndrome
Meckel's diverticulum
Cord colitis syndrome
Bloom syndrome
Löffler's syndrome
Schnitzler syndrome