This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Hypercalcemia is not a feature of one of the following conditions - 
Select and explain. 
A. Primary hyperparathyroidism, B. Multiple myeloma, C. Tumourlysis syndrome, D. Sarcoidosis
C: Tumourlysis syndrome
Answer: C: Tumourlysis syndrome 
Explanation: in tumor lysis syndrome there is hypocalcemia (Harrison 17 pg 1736)