Onco MCQs Misclleneous

Q1) For carcinoma of unknown primary with no lesion found on clinical examination,

A.blind biopsies detect primary 40% times

B.tonsillectomies find primary 20% times

c.PET find primary 60% times

d.CXR finds primary 20% times


PET is more sensitive than CT in identifying the primary lesion but cannot detect unknown primary tumors with more than 50% sensitivity