Endocrinology and Metabolism

Case Reports

A Case of Postpregnancy Spinal Osteoporosis.: Ji Young Seo, Hyeon Kyu Kim, Cheol Soo Choi, Doo Man Kim, Sung Hee Lim, Jae Myung Yoo, Moon Gi Choi, Huung Joon Yoo, Sung Woo Park, Jin Young Lee; J Korean Endocr Soc. 2001;16(2):265-270. Published online April 1, 2001

Abstract PDF: Osteoporosis is a common disease of the elderly and occurs especially in the postmenopausal women. Rarely, it occurs during a pregnancy or shortly thereafter and is accompanied by a substantial bone loss, resulting in fractures. The clinical significance of pregnancy-associated osteoporosis has been noted since the 1950s. Although its etiology is still unknown, it has recently been proposed that PTHrP may be an important causative factor in pregnancy-associated osteoporosis. There are three types of the pregnancy-associated osteoporosis, (1) a transient osteoporosis of the hip pregnancy, (2) a postpregnancy spinal osteoporosis and (3) a lactation-associated osteoporosis. Postpregnancy spinal osteoporosis typically occurs within three months after a first delivery and usually involving the axial skeleton accompanied by back pain, bone loss and a fracture. We present a case of postpregnancy spinal osteoporosis that developed three months after a first delivery. Our patient also showed multiple compression fractures in her lumbar spine and biochemical evidence of increased bone resorption.

A Case of Humoral Hypercalcemia of Malignancy Associated with Hepatoma: A Case in which both PTHrP and 1,25 (OH) 2D were elevated.: Seol Young Yoon, Chang Ryol Lee, Jun Ho Lee, So Jin Choi, Seung Pyo Son; J Korean Endocr Soc. 1999;14(1):197-202. Published online January 1, 2001

Abstract PDF: Hypercalcemia is one of the most common paraneoplastic syndromes and believed to occur through two general mechanisms, one humoral and the other local. The former mechanism has been termed humoral hypercalcemia of malignancy (HHM) and has been associated with the secretion of various cytokines, including parathyroid hormone-related protein (PTHrP). PTHrP beats sttuctural and functional similarities to PTH and seems to play a key role in the pathogenesis of HHM. We experienced the case of HHM associated with hepatoma, a rare cause of HHM, in 48 year-old male. We found no evidence of bone metastasis. In this case, contrary to our general acknowledgment, serum 1,25 (OH)D concentration was elevated. We report this case with a brief review of related literatures.

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