John M. Monchik

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Unilateral and minimally invasive parathyroidectomies with endoscopic and video-assisted technique have been introduced. Most of these procedures utilize preoperative localization and intraoperative monitoring of parathyroid hormone. There are only a few reports on these procedures. The objective of this study was to evaluate video-assisted(More)
OBJECTIVE Strong evidence indicates that at least one key tumour suppressor gene important for the development of malignant parathyroid tumours is located on chromosome 13, but the critical target gene remains unknown. Importantly, the region of acquired DNA loss includes two established tumour suppressor genes, the retinoblastoma gene, RB (RB1) and BRCA2.(More)
OBJECTIVE To describe a patient with severe hypercalcemia and elevated intact parathyroid hormone (iPTH) levels associated with a hepatocellular carcinoma. METHODS We present a case report, detailing the laboratory, surgical, and sestamibi scanning findings. Moreover, the literature relating to paraneoplastic ectopic production of iPTH is reviewed. (More)
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