Which pathological condition requires a decrease in exposure during imaging?

Multiple myeloma is a hematological condition characterized by the uncontrolled proliferation of plasma cells, which leads to a reduction in bone density. This decrease in density makes the bones more fragile and less opaque to X-rays, meaning they will appear darker on radiographic images. Therefore, when imaging patients with multiple myeloma, a decrease in exposure settings is necessary to prevent overexposing the film and to produce optimal radiographs that accurately represent the condition.

In contrast, other conditions such as osteoarthritis, Paget's disease, and consistent fractures generally involve different changes in bone density or structure that might not require the same adjustment in exposure settings. Osteoarthritis may involve denser areas due to bone spur formation, and Paget's disease can cause areas of increased vascularity and bone density. Consistent fractures, depending on the type and location, may not necessitate a decrease in exposure either, as they can vary in terms of bone quality and density.