NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,370 terms related to cancer and medicine.

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second opinion
(SEH-kund uh-PIN-yun)
In medicine, the opinion of a doctor other than the patient’s current doctor. The second doctor reviews the patient’s medical records and gives an opinion about the patient’s health problem and how it should be treated. A second opinion may confirm or question the first doctor’s diagnosis and treatment plan, give more information about the patient’s disease or condition, and offer other treatment options.