American Journal of Medical Case Reports
ISSN (Print): 2374-2151 ISSN (Online): 2374-216X Website: Editor-in-chief: Samy, I. McFarlane
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American Journal of Medical Case Reports. 2018, 6(10), 202-203
DOI: 10.12691/ajmcr-6-10-2
Open AccessArticle

An Isolated Lytic Bone Image with Initial Normocalcemia Revealing Hyperparathyroidism

Ines Kechaou1, , 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

Pub. Date: October 23, 2018

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


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.

brown tumor hyperparathyroidism normocalcemia hypercalcemia

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