What is the differential diagnosis for hypercalcaemia?
- Primary hyperparathyroidism - Malignancy - Paget's disease of the bone - Overuse of antacids for peptic ulcers
What is your next step in investigation?
CT chest / abdomen / pelvis - looking for other signs of malignancy i.e. primary lesion vs. metastasis
- There is a lytic deposit in the upper right humerus.
- No other lytic lesion is identified on this film.
- The lungs are clear