How do you differentiate between abscess and cyst radiogrphically?

Radiographically, abscesses typically appear as well-defined, often irregular lesions with surrounding edema and may show signs of fluid levels, indicating the presence of pus. In contrast, cysts usually present as well-defined, round or oval lesions with smooth borders and are typically filled with clear fluid, showing no signs of surrounding inflammation. Additionally, abscesses may demonstrate some degree of surrounding soft tissue swelling or reaction, while cysts do not exhibit such inflammatory changes.