This dye lights up small, potentially cancerous growth on the lungs

A CT scan of the thorax demonstrating a small lung nodule in the upper lobe of the right lung (pictured here on the left); this was an incidental finding on a routine surveillance scan for a patient with a prior treated colon cancer. — Photos: PROF ANAND SACHITHANANDAN

Lung nodules – small round growths in the lungs – are common findings in imaging tests.

They are often detected by chance during a routine medical check-up, a vehicle accident or while screening for a different condition.