[Primary hyperparathyroidism in pregnancy: a case report and bibliographical review]

Primary hyperparathyroidism in pregnant women is an uncommon disease. It could be easily misdiagnosed because physiologic changes during pregnancy; in some cases, patients could remain asymptomatic maintaining elevated calcium serum levels, and this situation represents a threat to the health of both mother and fetus. Maternal complications of primary hyperparathyroidism include nepfhrolithiasis, pancreatitis, cardiac arrhythmias, hypertension, nausea and vomiting. Most commonly, the underlying aetiology is a solitary parathyroid adenoma whereby parathyroidectomy is the only cure. We present the case of a 21-year old patient, with primary hyperparathyroidism diagnosed in the third trimester of pregnancy, complicated with pancreatitis and gestational hypertension. We performed a caesarean section due to elevated calcium levels. Post-caesarean section, she was referred to a third level institute (National Institute of Cancerology of Mexico), were she undergone parathyroidectomy, with benign histopathological results. An appropriate medical/surgical management of hyperparathyroidism during pregnancy is necessary for avoiding maternal and fetal complications.