Nickan Research Institute Journal of Parathyroid Disease 2345-6558 11 1 2023 01 01 Brown tumor in hyperparathyroidism; a new look at an old problem e11207 e11207 10.34172/jpd.2023.11207 EN Shiva Toumaj https://orcid.org/0000-0002-4828-9427 Journal Article 10.34172/jpd.2023.11207 2023 05 30 2023 06 12 Implication for health policy/practice/research/medical education: Brown tumors are uncommon in general (around 0.1%), however they tend to be more common in people with primary and secondary hyperparathyroidism.