What tool is essential in identifying tumor margins during surgery?

Intraoperative ultrasound is an essential tool for identifying tumor margins during surgery because it provides real-time imaging that allows surgeons to visualize the surrounding tissues and make immediate, informed decisions about the extent of the tumor resection. This capability is crucial for ensuring that all cancerous tissue is removed while preserving as much healthy tissue as possible, thereby reducing the likelihood of cancer recurrence and minimizing postoperative complications.

Other imaging techniques, such as radiography, computer tomography, and magnetic resonance imaging, while useful for preoperative planning and diagnosis, do not offer the same level of real-time feedback during surgery. They can provide valuable information about tumor size and location, but they cannot be used to assess margins effectively during the surgical procedure itself. In contrast, intraoperative ultrasound allows for dynamic evaluation, enabling the surgical team to adapt their approach in the moment based on the visual data presented.