Which term indicates the presence of inflammation?

The suffix "-itis" is used in medical terminology to denote inflammation. When this suffix is attached to the root of a word, it indicates that there is an inflammatory condition associated with that root. For example, "arthritis" refers to inflammation of the joints, and "dermatitis" refers to inflammation of the skin. The use of "-itis" is widely recognized in both clinical and academic settings to signify inflammation.

In contrast, the other options do not relate to inflammation. The suffix "-lithiasis" refers specifically to the presence of stones or calculi in a particular organ, such as in "cholelithiasis," which means the presence of gallstones. The suffix "-logic" pertains to the study of a particular field or discipline, typically found in terms like "oncologic," which relates to the study of tumors or cancer. Lastly, "-lucent" describes something that allows light to pass through, such as "radiolucent," which pertains to how different tissues appear in imaging studies but does not indicate inflammation. Thus, "-itis" is clearly the correct term to indicate the presence of inflammation.