Which statement about extrathoracic metastasis from bronchogenic carcinoma is correct?

• A. Liver and spleen
• B. Bone metastasis and brain metastasis
• C. Adrenal metastasis only
• D. Heart and great vessels

Answer: (B)

When bronchogenic (lung) cancer spreads beyond the chest, it most often travels through the bloodstream to distant organs, with bone and brain being among the most frequent targets. This pattern explains why bone metastasis together with brain metastasis is the best description of common extrathoracic spread. While the liver and adrenal glands can also be involved, metastasis to these sites is not exclusive, and heart or great vessels are not typical distant targets.