United Kingdom
A 50-year-old male asked:

Is it true that the primary tumor in small cell lung cancer is often occult? does this mean even a ct scan can't see it? do we only detect on spread

1 doctor answer2 doctors weighed in
Dr. Michael Gabor
Diagnostic Radiology 35 years experience
At some point: in its development, every cancer is "occult" because it originates on a microscopic level. CT has a high sensitivity for detecting lung cancer, approximately 95%, so CT will detect the vast majority of lung cancers.
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Last updated May 24, 2017


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