RT Journal Article SR Electronic T1 Hypercalcaemia due to the coexistence of parathyroid adenoma and myelomatosis. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 732 OP 736 DO 10.1136/jcp.35.7.732 VO 35 IS 7 A1 R M Francis A1 A G Bynoe A1 C Gray YR 1982 UL http://jcp.bmj.com/content/35/7/732.abstract AB A 70-year-old woman presented with back pain due to vertebral crush fractures and was found to have hypercalcaemia. Investigation revealed evidence of both primary hyperparathyroidism and Bence Jones myeloma and this was subsequently confirmed at necropsy. This is the first description of a case in which the simultaneous occurrence of both diseases was reliably established. The case illustrates the difficulty in identifying the cause of hypercalcaemia in some patients, and emphasises the need to consider the diagnosis of myeloma in all cases of hypercalcaemia.