Hyperparathyroidism causes -: (A) Multiple bone cysts, (B) Subperiosteal bone resorption, (C) Brown's tumor, (D) All of the above
Answer is D. Radiological features of bone are : Rarefaction of bones, salt pepper skull, loss of lamina dura, sub-periosteal resorption of bone, multiple cysts, Brown's tumor, and collapse of vertebrae with biconvex disc.