What does the LESIONS acronym stand for in radiographic interpretation?

• A. Location, Edge, Shape, Internal, Other structures, Number, Size
• B. Location, Edge, Shape, Internal, Other structures, Length, Size
• C. Location, Edge, Shape, Internal, Extra structures, Number, Size
• D. Location, Edge, Shape, Interior, Other structures, Number, Size

Answer: (A)

The LESIONS mnemonic provides a quick, systematic way to describe radiographic abnormalities by seven features: Location, Edge, Shape, Internal, Other structures, Number, and Size. Location tells exactly where the lesion sits; Edge describes the border quality; Shape notes the contour (round, oval, irregular); Internal refers to what fills the lesion (solid, cystic, density); Other structures notes effects on nearby tissues or involvement of adjacent anatomy; Number indicates how many lesions are present; Size records the lesion’s dimensions. The option that uses Location, Edge, Shape, Internal, Other structures, Number, Size matches this standard phrasing. Substituting Length, Extra structures, or Interior changes the established terms, so those alternatives aren’t correct.