From the ct scan results, the mass is close to the lower bronchus and there is consolidation as well, so, the mass is most probably obstructing the bronchus by protruding into it or at least very close to it, so it is amenable to biopsy by using the bronchoscope, so this is a good step.
Blood tests to test are divided into
a. Present in all types of inflammation and malignancy.
b. Examples include erythrocyte sedimentation rate and c-reactive protein.
(also sometimes known as tumour markers):
a. Specific cancers produce specific substances in the blood.
b. Examples include psa for prostate cancer.
Regarding lung cancer, i can not really think of a specific tumour marker, but you have to put in mind that i am not an oncologist.
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and i hope that this information helped.
Yasser Mokhtar, M.D.