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Hypercalcaemia is defined as a serum calcium level of more than 10.50 mg/dl. Although there are several causative factors for hypercalcaemia, primary hyperparathyroidism and malignancy are the two most common causes encountered in clinical practice. Other causes include vitamin D intoxication, granulomatous diseases like sarcoidosis, tuberculosis and some fungal infections, thyrotoxicosis, Addison’s disease, milk-alkali syndrome, vitamin A intoxication, therapy with thiazide diuretics and lithium, familial hypocalciuric hypercalcaemia and prolonged immobilization. All these account for fewer than 10 % of all causes of hypercalcaemia. These rare causes of hypercalcaemia are important to consider in certain clinical situations when the underlying cause of hypercalcaemia cannot be attributed to primary hyperparathyroidism or overt malignancy.[1]

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Darathi Tahbildar, Tanushree Maitra, & Debabrata Goswami. (2022). Hypercalcaemia - A Rare Manifestation of Tuberculosis - A Case Report. Journal of Evolution of Medical and Dental Sciences, 11(5), 590–592.


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