Confusion Follows Malaise and Pain

ANSWER
The radiograph demonstrates innumerable small lytic defects throughout the calvarium. The patient’s confusion is most likely secondary to profound metabolic abnormalities. However, in the setting of lytic bone lesions, metabolic abnormalities of renal insufficiency, severe hypercalcemia, and hypomagnesemia, one must be concerned about an occult myeloma, and appropriate work-up must be done.