What does the suffix "-gram" indicate in medical terminology?

The suffix "-gram" in medical terminology specifically denotes a record or a written representation of data. It is derived from the Greek word 'gramma,' meaning something written. This term is commonly used in various medical contexts to indicate the results of imaging studies or tests, such as an electrocardiogram (ECG), which records the electrical activity of the heart, or a mammogram, which is an X-ray of breast tissue. These records are crucial for diagnosing conditions, monitoring health, and guiding treatment decisions.

The other options represent different concepts relevant to medical terminology. Surgical procedures often use the suffix "-ectomy" for removal or "-plasty" for repair, while types of examinations might be represented by terms like "scope," indicating visual examination. Diagnoses are usually indicated by terms such as "itis" for inflammation or "osis" for a condition, rather than using "-gram." Understanding the specific meanings of suffixes like "-gram" helps in comprehending the larger context of medical documentation and communication.