The left CT image (A) shows the direction (red arrow) in which the left lung mass was biopsied and came back negative for cancer. This was because only dead tissue (blue) was at the site of the biopsy as can be seen in the 18F-FDG PET-CT scan (B). The cancer tissues (red with a yellow-green border) are present in other parts of the mass. — Photos: Dr ALEX KHOO CHEEN HOE
Since the start of the Covid-19 pandemic, anyone complaining of cough or breathlessness would be routinely investigated for the infectious disease.
Although many people would have been diagnosed with Covid-19 itself, there are also a handful of patients who were found to have lung cancer.