An Isolated Lytic Bone Image with Initial Normocalcemia Revealing Hyperparathyroidism

Ines Kechaou^1, , Imene Boukhris¹, Mohamed Salah Hamdi¹, Eya Cherif¹, Lamia Ben Hassine¹ and Narjess Khalfallah¹

¹Department B of Internal Medicine, Hospital of Charles Nicolle, University of Tunis El Manar, Tunis, Tunisia

Cite this paper

Ines Kechaou, Imene Boukhris, Mohamed Salah Hamdi, Eya Cherif, Lamia Ben Hassine and Narjess Khalfallah. An Isolated Lytic Bone Image with Initial Normocalcemia Revealing Hyperparathyroidism. American Journal of Medical Case Reports. 2018; 6(10):202-203. doi: 10.12691/AJMCR-6-10-2

Abstract

Brown tumors are rarely the presenting feature of the hyperparathyroidism and are usually accompanied by a disturbance of the calcium-phosphate balance. We report the case of a 46-year-old patient with no medical history, presenting a solitary bone lytic lesion linked to primary hyperparathyroidism. Phosphate and calcium balance was within normal range initially thus resulting in delayed diagnosis. Bone lesion has subsequently been confirmed to be a brown tumor. In front of solitary lytic bone lesion and even if phosphate and calcium balance was normal; the dosage of parathyroid hormone must be performed.

Keywords

brown tumor, hyperparathyroidism, normocalcemia, hypercalcemia

Copyright

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