Most common cause of hypercalcemia crisis is:: (A) Parathyroid adenoma, (B) Parathyroid hyperplasia, (C) Carcinoma breast, (D) Paget's disease
Answer is C. Ans. (c) Carcinoma breastRef: Harrison 18/e p 3106* MC cause of Hypercalcemia - Parathyroid adenoma* MC cause of Hypercalcemic Crisis - Malignancy (Cancer Breast is the MC cause)