Which of the following most commonly produces osteoblastic secondaries?: (A) Carcinoma lung, (B) Carcinoma breast, (C) Carcinoma urinary bladder, (D) Carcinoma prostate
Answer is D. Most common tumor producing osteoblastic bone metastasis is carcinoma prostate. Purely Osteoblastic secondaries are produced by Ca.prostate, Ca.Breast, carcinoid tumor and medulloblastoma.