RESUMO
@#We report a case of diabetes mellitus in a middle-aged female who subsequently developed primary hyperparathyroidism and underwent parathyroidectomy. Prior to surgery, she was hospitalized several times since 1988 for vomiting, pain abdomen and dehydration. On none of these occasions hypercalcaemia could be documented. Yet she developed pancreatic calcification and diabetes in 1991 and was diagnosed as fibrocalculous pancreatic diabetes (FCPD) and treated with insulin. Nephrolithiasis developed in 2003. Hypercalcaemia with high PTH was detected in 2004 and a solitary right parathyroid adenoma was identified and surgically removed. Following surgery, gastrointestinal symptoms disappeared but diabetes remained unaltered on follow up for 8 years. The cause of multi-organ calcification which started well before development of hypercalcaemia is not known.