This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Bony metastasis is common with all of the following except - 
Select and explain. 
A. Ca breast, B. Ca lung, C. Ca testis, D. Ca prostate
C: Ca testis
Answer: C: Ca testis 
Explanation: Ans is 'c' i.e., Ca Testis "Bone is a common site of metastasis for carcinomas of the prostate, breast, lung, kidney, bladder and thyroid and for lymphomas and sarcomas. Prostate, breast and lung primaries account for 80% of all bones metastasis." - Harrison Testicular Ca metastasis to bones is very rare (not even mentioned in Harrison's detailed explanation of Testicular carcinoma)