title: Postpartum hypercalcemia in a patient with medullary sponge kidneys.
abstract: Previous associations of primary hyperparathyroidism-induced hypercalcemia and medullary sponge kidney (MSK) have been reported. In this report, we describe a lactating woman MSK noted to be hypercalcemic throughout lactation, without evidence of hyperparathyroidism. After the baby was weaned, the serum calcium returned to normal. A bone biopsy performed while the patient was hypercalcemic was consistent with hyperparathyroidism, suggesting the presence of a parathyroid-like protein produced during lactation.
authors.affiliation: Department of Medicine, University of Arizona Health Sciences Center, Tucson 85724.
authors.forename: M S
authors.initials: MS
authors.lastname: Siskind
authors.forename: M M
authors.initials: MM
authors.lastname: Popovtzer
mesh_terms: D000328:Adult; D001842:Bone and Bones / Q000473:pathology; D002118:Calcium / Q000097:blood; D005260:Female; D006801:Humans; D006934:Hypercalcemia / Q000097:blood / Q000150:complications* / Q000473:pathology; D007774:Lactation; D007691:Medullary Sponge Kidney / Q000097:blood / Q000150:complications*; D010281:Parathyroid Hormone / Q000097:blood; D011644:Puerperal Disorders / Q000097:blood / Q000473:pathology
chemical_list: D010281:Parathyroid Hormone; D002118:Calcium