Dogan, A.Algün, E.Kisli, E.Harman, M.Kösem, M.Tosun, N.2025-05-102025-05-1020041067-251610.1053/j.jfas.2004.05.0012-s2.0-3342931512https://doi.org/10.1053/j.jfas.2004.05.001https://hdl.handle.net/20.500.14720/6387Brown tumors are one of the characteristics of primary hyperparathyroidism, although, in some cases, they are noted with secondary hyperparathyroidism as well. The authors present a case of a 50-year-old woman with primary hyperparathyroidism caused by parathyroid carcinoma with an unusual location of a brown tumor in the calcaneus. She first presented with pain and swelling over the heel and ankle, and the diagnosis was suspected by radiographs. Biopsy of the calcaneal lesion confirmed a brown tumor. After the parathyroid lesion was removed surgically, her symptoms were relived. The calcaneal lesion was treated with immobilization of the foot.eninfo:eu-repo/semantics/closedAccessBrown TumorCalcaneusPrimary HyperparathyroidismArticle434Q4Q324825115284814