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[Diagnostic approach to hypocalcaemia and hypercalcaemia]. 2012

Marcel J W Janssen, and Robert Y van der Velde, and Joost C J M Swaanenburg, and Joop P W van den Bergh
VieCuri Medisch Centrum voor Noord-Limburg, Venlo/Venray, the Netherlands. marceljanssen@viecuri.nl

A 49-year-old woman was examined for osteoporosis and metabolic bone disease after a low-trauma wrist fracture. Laboratory and additional radiological investigations revealed parathyroid hormone (PTH)-mediated hypercalcaemia caused by a parathyroid adenoma. A second patient, a 65-year-old woman with a history of abdominal complaints and tetany, appeared to have hypocalcaemia. Severe vitamin D deficiency and secondary hyperparathyroidism were detected and the patient was finally diagnosed with coeliac disease. Based on these case studies, we highlight the calcium homeostasis and the role of laboratory evaluation of serum calcium, inorganic phosphate, intact PTH, 25-OH vitamin D, magnesium and 24-hour urinary calcium excretion in the diagnostic work-up for hypocalcaemia and hypercalcaemia.

UI MeSH Term Description Entries
D006996 Hypocalcemia Reduction of the blood calcium below normal. Manifestations include hyperactive deep tendon reflexes, Chvostek's sign, muscle and abdominal cramps, and carpopedal spasm. (Dorland, 27th ed) Hypocalcemias
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010282 Parathyroid Neoplasms Tumors or cancer of the PARATHYROID GLANDS. Cancer of Parathyroid,Parathyroid Cancer,Cancer of the Parathyroid,Neoplasms, Parathyroid,Parathyroid Adenoma,Parathyroid Carcinoma,Adenoma, Parathyroid,Adenomas, Parathyroid,Cancer, Parathyroid,Cancers, Parathyroid,Carcinoma, Parathyroid,Carcinomas, Parathyroid,Neoplasm, Parathyroid,Parathyroid Adenomas,Parathyroid Cancers,Parathyroid Carcinomas,Parathyroid Neoplasm
D002446 Celiac Disease A malabsorption syndrome that is precipitated by the ingestion of foods containing GLUTEN, such as wheat, rye, and barley. It is characterized by INFLAMMATION of the SMALL INTESTINE, loss of MICROVILLI structure, failed INTESTINAL ABSORPTION, and MALNUTRITION. Gluten Enteropathy,Sprue, Celiac,Sprue, Nontropical,Celiac Sprue,Gluten-Sensitive Enteropathy,Sprue,Disease, Celiac,Enteropathies, Gluten,Enteropathies, Gluten-Sensitive,Enteropathy, Gluten,Enteropathy, Gluten-Sensitive,Gluten Enteropathies,Gluten Sensitive Enteropathy,Gluten-Sensitive Enteropathies,Nontropical Sprue
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006934 Hypercalcemia Abnormally high level of calcium in the blood. Milk-Alkali Syndrome,Hypercalcemias,Milk Alkali Syndrome,Syndrome, Milk-Alkali
D000236 Adenoma A benign epithelial tumor with a glandular organization. Adenoma, Basal Cell,Adenoma, Follicular,Adenoma, Microcystic,Adenoma, Monomorphic,Adenoma, Papillary,Adenoma, Trabecular,Adenomas,Adenomas, Basal Cell,Adenomas, Follicular,Adenomas, Microcystic,Adenomas, Monomorphic,Adenomas, Papillary,Adenomas, Trabecular,Basal Cell Adenoma,Basal Cell Adenomas,Follicular Adenoma,Follicular Adenomas,Microcystic Adenoma,Microcystic Adenomas,Monomorphic Adenoma,Monomorphic Adenomas,Papillary Adenoma,Papillary Adenomas,Trabecular Adenoma,Trabecular Adenomas
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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