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A 50-year-old male asked:

If small cell lung cancer grows so quickly, why is the primary often difficult to visualise on ct with contrast? is the primary slow growing? thanks.

1 doctor answer1 doctor weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
Observation: It is not clear why small cell lung cancer can have larger secondaries than the primary lesion. But it is a common observation and metastatic lesions/secondaries may be the first manifestation of this cancer and the primary may be difficult to visualize. It is not due to the slow growth rate of the tumor.

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Last updated Apr 19, 2017

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