Researchers found that confined tumors are more resistant to drug treatments.
Researchers have embedded gold particles in soft films that dissipate light energy at the surface of the eye and could have future medical uses.
A special type of spectroscopy helped doctors differentiate between tumors in mice that responded to radiation therapy and those that resisted it.
A cyber attacker could potentially insert a feature that looks like cancer into a scan, or remove it, researchers warn.
Patients should not decline X-ray imaging for medically advised procedures, group says.