This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Surgery
Temporal bone metastasis is seen with 
Select and explain. 
A. Ca breast, B. Ca bronchus, C. Ca kidney, D. Ca prostate
B: Ca bronchus
Answer: B: Ca bronchus 
Explanation: Temporal Bone metastasis Metastatic tumors to the temporal bone are uncommon Usually seeded by the Hematogenous route. MC metastatic lesion in the temporal bone : CA breast Lung, prostate and renal carcinomas are well documented for their metastatic potential to the temporal bone Ref: www.ncbi.nlm.gov.63(suppl 1) Jul 2011