Hypercalcemia due to Primary Hepatic Lymphoma

Table 1

PTH-dependent hypercalcemia etiologies and percent of occurrence. Parathyroid gland hyperplasia includes the multiple endocrine neoplasia (MEN) syndromes, hyperparathyroid jaw tumor syndrome, and familial isolated hyperparathyroidism. Rarely, primary parathyroid gland malignancy is the cause [3].

PTH-dependent hypercalcemia; etiology	Prevalence
Single benign adenoma	80–85%
Parathyroid gland hyperplasia	10–15%
Parathyroid malignancy	Less than 1%