[Solved] An expansile lucent lesion demonstrating a sharp demarcation from normal adjacent bone having a thin sclerotic rim is an A) unicameral cyst B) osteoma C) aneurysmal cyst D) osteochondroma Impact: The significant or lasting effect that something, particularly a significant change, has on a situation, process, or state. Assessing Change: The process of evaluating or determining the extent, significance, or effects of alterations in a given situation or environment. Measurable Outcomes: Specific, quantifiable results that can be used to evaluate the success or impact of an activity or project. Methods Section: Part of a research paper or report that describes the procedures or techniques used to gather and analyze data.