The rule of two in Radiology: An Update

There are 10 rules used in medicine/radiology that taught to students so they can remember certain points that they have to do to have an accurate diagnosis. These rules are:- 1- Two views: One view is too few; 2- Two joints: Above and below the injured bone; 3- Two sides: Compare with the other normal side; 4- Two abnormalities:Find a second abnormality; 5- Two occasions: Compare the current x-ray with a previous one (especially in CXR); 6- Two visits: Repeat after an interval or a procedure; 7- Two opinions: Ask for a second opinion or use the red dot system; 8- Two records: Write down the radiographic and clinical finings; 9- Two specialists: Get a radiology report; 10- Two examinations: Ask for CT, MRI, US, NM, etc.