Mr. Toan, 46, a non-smoker without chest pain or a chronic cough, unexpectedly discovered a malignant tumor in his left lung during a health check-up.

The lung cancer vaccine LungVax will enter phase one trials in the summer of 2026, expected to last four years, marking the first of its kind to be tested in humans.

Two weeks after lung surgery for what was "99,9% certain" to be cancer, a 53-year-old woman was shocked when doctors determined the "tumor" was actually an infection.

I have stage three lung cancer and am about to undergo radiation therapy. When a simulation CT scan was ordered, the doctor said I needed a contrast agent injection, but I don't understand why. (The Phong, 59 years old, Tay Ninh)