Which statement about the radiographic appearance of idiopathic osteosclerosis is true?

• A. It only appears as a radiolucent area
• B. It can appear corticated, diffuse, or well-demarcated
• C. It always requires treatment
• D. It is confined to the condyle

Answer: (B)

Idiopathic osteosclerosis shows up as a localized radiopaque area within the jawbone on radiographs, and the borders of that opacity can vary. Sometimes it has a corticated border, meaning a thin radiopaque rim around the lesion, which signals a well-defined, slowly growing process. In other cases the margins are well-demarcated with clear boundaries, and in some instances the border may appear more diffuse or less sharply defined. This variability in border appearance is why the statement describing it as potentially corticated, diffuse, or well-demarcated is correct. It is not radiolucent, it does not always require treatment, and it is not confined to the condyle.