Which suffix denotes a record or image in diagnostic imaging?

• A. -gram
• B. -iasis
• C. -osis
• D. -itis

Answer: (A)

Suffixes in medical terminology signal what the term represents. The -gram suffix denotes a record or image produced by a study. In diagnostic imaging, terms like radiogram, mammogram, and angiogram all name the image or recording obtained from the procedure, which is exactly what the question asks for. The other suffixes point to conditions or states—-iasis indicates a presence of something, -osis a condition or process, and -itis inflammation—rather than to the imaging result itself. Hence, -gram best fits as the suffix that denotes a record or image in diagnostic imaging.