Expansile lytic osseous metastases are characteristics of primary malignancy of -: (A) Kidney, (B) Bronchus, (C) Breast, (D) Prostate
Answer is A. Renal (kidney) carcinoma       →       Osteolytic bone metastasis.
Breast and lung (bronchus)     →       Mixed osteolytic - Osteoblastic
Prostate carcinoma                →       Osteoblastic metastasis